Mailcow logs viewer: A faster, cool way to monitor your emails

shlomi · 2025-12-25T18:47:39+00:00

Hi everyone, While mailcow is an amazing suite, I often found the built-in log viewing options a bit clunky when I needed to debug something quickly (its ev...

bpsintl

Ah ok great, thanks!

maybl8

My Log viewer stats won’t update since 2/12/26 can you check if my .env file looks ok?

# Mailcow Logs Viewer Configuration
# Copy this file to .env and fill in your values

# ============================================================================
# REQUIRED SETTINGS
# ============================================================================

# Your Mailcow instance URL (without trailing slash)
MAILCOW_URL=https://mail.dccathome.com

# Mailcow API key (generate from System → API in Mailcow admin)
# Required permissions: Read access to logs
MAILCOW_API_KEY=###########################

# Note: Active domains are automatically fetched from Mailcow API
# No need to configure MAILCOW_LOCAL_DOMAINS anymore

# =============================================================================
# DATABASE CONFIGURATION
# =============================================================================

# PostgreSQL credentials
POSTGRES_USER=mailcowlogs
POSTGRES_PASSWORD=xxxxxxxx
POSTGRES_DB=mailcowlogs

# Database host (use 'db' for docker-compose setup)
POSTGRES_HOST=db
POSTGRES_PORT=5432

# =============================================================================
# FETCH CONFIGURATION
# =============================================================================

# Seconds between log fetches from Mailcow
# Lower = more frequent updates, higher load on Mailcow
# Default: 60 seconds
FETCH_INTERVAL=60

# Number of records to fetch per request
# Recommended: 500 for most servers, increase if you have high email volume
# Default: 500
FETCH_COUNT_POSTFIX=500
FETCH_COUNT_RSPAMD=200
FETCH_COUNT_NETFILTER=500

# Number of days to keep logs in database
# Logs older than this will be automatically deleted
# Recommended: 7 for most cases, 30 for compliance/audit requirements
# Default: 7 days
RETENTION_DAYS=30

CORRELATION_INTERVAL=300

# Correlation expiration (minutes)
MAX_CORRELATION_AGE_MINUTES=10

# Correlation check interval (seconds)
CORRELATION_CHECK_INTERVAL=120

# =============================================================================
# BLACKLIST CONFIGURATION (Optional)
# =============================================================================

# Email addresses to exclude from logs (comma-separated, no spaces)
# These emails will NOT be stored in the database
# Use cases:
#   - BCC addresses that receive all outbound mail
#   - Monitoring/health check addresses
#   - Internal system addresses
BLACKLIST_EMAILS=

# Examples:
# BLACKLIST_EMAILS=bcc-archive@example.com,monitor@example.com

BLACKLIST_ALERT_EMAIL=danc@dccathome.com

# =============================================================================
# WEEKLY SUMMARY REPORT
# =============================================================================

# Enable weekly summary email report (sent to ADMIN_EMAIL)
# Default: true
ENABLE_WEEKLY_SUMMARY=true

# =============================================================================
# WEB CONFIGURATION
# =============================================================================

# Application port (internal container port)
APP_PORT=8082

# Timezone for log display (e.g., Europe/London, America/New_York)
TZ=America/New_York

# Application title (shown in browser tab)
APP_TITLE=Mailcow Logs Viewer

# Logo URL (optional, leave empty for no logo)
APP_LOGO_URL=

# =============================================================================
# ADVANCED CONFIGURATION (Optional)
# =============================================================================

# Log level (DEBUG, INFO, WARNING)
# Default: INFO
LOG_LEVEL=WARNING

# Enable debug mode (shows detailed errors, use only for development)
# WARNING: Never enable in production!
# Default: false
DEBUG=false

# Maximum records to return in search results
MAX_SEARCH_RESULTS=1000

# CSV export row limit
CSV_EXPORT_LIMIT=10000

# Background job workers (number of concurrent fetch jobs)
# Higher = more parallel processing but more CPU usage
SCHEDULER_WORKERS=4

# API request timeout (seconds)
MAILCOW_API_TIMEOUT=30

# =============================================================================
# AUTHENTICATION CONFIGURATION (Optional)
# =============================================================================

# Enable basic HTTP authentication
# When enabled, ALL pages and API endpoints require authentication
# Default: false (no authentication required)
AUTH_ENABLED=true

# Basic auth username
# Default: admin
AUTH_USERNAME=admin

# Basic auth password (REQUIRED if AUTH_ENABLED=true)
# Leave empty to disable authentication
# WARNING: Use a strong password in production!
AUTH_PASSWORD=xxxxxxxx

ADMIN_EMAIL=danc@dccathome.com

# MaxMind GeoIP
MAXMIND_ACCOUNT_ID=#####
MAXMIND_LICENSE_KEY=###################

# SMTP Notifications
SMTP_ENABLED=true
SMTP_HOST=in-v3.mailjet.com
SMTP_PORT=587
SMTP_USE_TLS=true
SMTP_USER=xxxxxxxx
SMTP_PASSWORD=xxxxxxxx
SMTP_FROM=danc@dccathome.com

# DMARC Settings
DMARC_RETENTION_DAYS=90
DMARC_MANUAL_UPLOAD_ENABLED=true

# DMARC IMAP Auto-Import
DMARC_IMAP_ENABLED=true
DMARC_IMAP_HOST=mail.dccathome.com
DMARC_IMAP_PORT=993
DMARC_IMAP_USE_SSL=true
DMARC_IMAP_USER=danc@dccathome.com
DMARC_IMAP_PASSWORD=xxxxxxxxx
DMARC_IMAP_FOLDER=INBOX
DMARC_IMAP_DELETE_AFTER=true
DMARC_IMAP_INTERVAL=3600
DMARC_IMAP_RUN_ON_STARTUP=true

# Optional: Separate email for DMARC errors
DMARC_ERROR_EMAIL=danc@dccathome.com

DMARC_ALLOW_REPORT_DELETE=true

//EDIT by @pkernstock: Removed API key and maxmind credentials

pkernstock

A bit off-topic: maybl8 Your API key & MAXMIND account credentials are visible in your post. I’d highly suggest changing them.

DocFraggle

Looks good, anything in the logs?

maybl8

DocFraggle
What log and where are the logs I need to look at?

I see this in the journalctl:

Feb 16 08:24:52 mail dockerd[755]: time="2026-02-16T08:24:52.492106941-05:00" level=error msg="[resolver] failed to query external DNS server" client-addr="udp:172.22.1.2:55065" dns-server="udp:172.22.1.254:53" error="read udp 172.22.1.2:55065->172.22.1.254:53: read: connection refused" question=";phpfpm.\tIN\t A"
Feb 16 08:24:52 mail dockerd[755]: time="2026-02-16T08:24:52.492676100-05:00" level=error msg="[resolver] failed to query external DNS server" client-addr="udp:172.22.1.2:40424" dns-server="udp:172.22.1.254:53" error="read udp 172.22.1.2:40424->172.22.1.254:53: read: connection refused" question=";phpfpm.\tIN\t A"
Feb 16 08:24:52 mail dockerd[755]: time="2026-02-16T08:24:52.492947070-05:00" level=error msg="[resolver] failed to query external DNS server" client-addr="udp:172.22.1.2:34185" dns-server="udp:172.22.1.254:53" error="read udp 172.22.1.2:34185->172.22.1.254:53: read: connection refused" question=";phpfpm.tail4fd87c.ts.net.\tIN\t A"

DocFraggle

The mailcow-logs-viewer logs of course… in your mailcow-logs-viewer directory:

docker compose logs

maybl8

Here is some of the log output:

mailcow-logs-app  | 2026-02-16 11:12:23 - WARNING - Execution of job "Fetch mailcow Logs (trigger: interval[0:01:00], next run at: 2026-02-16 11:12:23 EST)" skipped: maximum number of running instances reached (1)
mailcow-logs-app  | 2026-02-16 11:12:25 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/postfix/500: 
mailcow-logs-app  | 2026-02-16 11:12:26 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/rspamd-history/200: 
mailcow-logs-app  | 2026-02-16 11:12:26 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/netfilter/500: 
mailcow-logs-app  | INFO:     127.0.0.1:58828 - "GET /api/health HTTP/1.1" 200 OK
mailcow-logs-app  | 2026-02-16 11:12:27 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/status/containers: 
mailcow-logs-app  | 2026-02-16 11:12:27 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/status/vmail: 
mailcow-logs-app  | 2026-02-16 11:12:27 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/domain/all: 
mailcow-logs-app  | 2026-02-16 11:12:27 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/mailbox/all: 
mailcow-logs-app  | 2026-02-16 11:12:27 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/alias/all: 
mailcow-logs-app  | 2026-02-16 11:12:32 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/status/containers: 
mailcow-logs-app  | 2026-02-16 11:12:32 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/status/vmail: 
mailcow-logs-app  | 2026-02-16 11:12:32 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/domain/all: 
mailcow-logs-app  | 2026-02-16 11:12:32 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/mailbox/all: 
mailcow-logs-app  | 2026-02-16 11:12:32 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/alias/all: 
mailcow-logs-app  | 2026-02-16 11:12:32 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/postfix/1: 
mailcow-logs-app  | INFO:     172.18.0.1:60208 - "GET /api/stats/dashboard HTTP/1.1" 200 OK
mailcow-logs-app  | INFO:     172.18.0.1:60208 - "GET /api/stats/recent-activity?limit=11 HTTP/1.1" 200 OK
mailcow-logs-app  | INFO:     127.0.0.1:47672 - "GET /api/health HTTP/1.1" 200 OK
mailcow-logs-app  | 2026-02-16 11:12:58 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/postfix/500: 
mailcow-logs-app  | 2026-02-16 11:12:58 - ERROR - [ERROR] Postfix fetch error: RetryError[<Future at 0x78b9fc8cd650 state=finished raised MailcowAPIError>]
mailcow-logs-app  | 2026-02-16 11:12:58 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/rspamd-history/200: 
mailcow-logs-app  | 2026-02-16 11:12:58 - ERROR - [ERROR] Rspamd fetch error: RetryError[<Future at 0x78b9fc563790 state=finished raised MailcowAPIError>]
mailcow-logs-app  | 2026-02-16 11:12:58 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/netfilter/500: 
mailcow-logs-app  | 2026-02-16 11:12:58 - ERROR - [ERROR] Netfilter fetch error: RetryError[<Future at 0x78ba007297d0 state=finished raised MailcowAPIError>]
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 67, in map_httpcore_exceptions
mailcow-logs-app  |     yield
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 371, in handle_async_request
mailcow-logs-app  |     resp = await self._pool.handle_async_request(req)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection_pool.py", line 256, in handle_async_request
mailcow-logs-app  |     raise exc from None
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection_pool.py", line 236, in handle_async_request
mailcow-logs-app  |     response = await connection.handle_async_request(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection.py", line 101, in handle_async_request
mailcow-logs-app  |     raise exc
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection.py", line 78, in handle_async_request
mailcow-logs-app  |     stream = await self._connect(request)
mailcow-logs-app  |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection.py", line 124, in _connect
mailcow-logs-app  |     stream = await self._network_backend.connect_tcp(**kwargs)
mailcow-logs-app  |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_backends/auto.py", line 31, in connect_tcp
mailcow-logs-app  |     return await self._backend.connect_tcp(
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_backends/anyio.py", line 113, in connect_tcp
mailcow-logs-app  |     with map_exceptions(exc_map):
mailcow-logs-app  |   File "/usr/local/lib/python3.11/contextlib.py", line 158, in __exit__
mailcow-logs-app  |     self.gen.throw(typ, value, traceback)
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_exceptions.py", line 14, in map_exceptions
mailcow-logs-app  |     raise to_exc(exc) from exc
mailcow-logs-app  | httpcore.ConnectTimeout
mailcow-logs-app  | 
mailcow-logs-app  | The above exception was the direct cause of the following exception:
mailcow-logs-app  | 
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/app/app/mailcow_api.py", line 60, in _make_request
mailcow-logs-app  |     response = await client.request(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1559, in request
mailcow-logs-app  |     return await self.send(request, auth=auth, follow_redirects=follow_redirects)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1646, in send
mailcow-logs-app  |     response = await self._send_handling_auth(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1674, in _send_handling_auth
mailcow-logs-app  |     response = await self._send_handling_redirects(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1711, in _send_handling_redirects
mailcow-logs-app  |     response = await self._send_single_request(request)
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1748, in _send_single_request
mailcow-logs-app  |     response = await transport.handle_async_request(request)
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 370, in handle_async_request
mailcow-logs-app  |     with map_httpcore_exceptions():
mailcow-logs-app  |   File "/usr/local/lib/python3.11/contextlib.py", line 158, in __exit__
mailcow-logs-app  |     self.gen.throw(typ, value, traceback)
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 84, in map_httpcore_exceptions
mailcow-logs-app  |     raise mapped_exc(message) from exc
mailcow-logs-app  | httpx.ConnectTimeout
mailcow-logs-app  | 
mailcow-logs-app  | During handling of the above exception, another exception occurred:
mailcow-logs-app  | 
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/_asyncio.py", line 50, in __call__
mailcow-logs-app  |     result = await fn(*args, **kwargs)
mailcow-logs-app  |              ^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/app/app/mailcow_api.py", line 74, in _make_request
mailcow-logs-app  |     raise MailcowAPIError(f"Failed to connect to mailcow API: {e}")
mailcow-logs-app  | app.mailcow_api.MailcowAPIError: Failed to connect to mailcow API: 
mailcow-logs-app  | 
mailcow-logs-app  | The above exception was the direct cause of the following exception:
mailcow-logs-app  | 
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/app/app/scheduler.py", line 504, in fetch_and_store_netfilter
mailcow-logs-app  |     logs = await mailcow_api.get_netfilter_logs(count=settings.fetch_count_netfilter)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/app/app/mailcow_api.py", line 141, in get_netfilter_logs
mailcow-logs-app  |     data = await self._make_request(f"/api/v1/get/logs/netfilter/{count}")
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/_asyncio.py", line 88, in async_wrapped
mailcow-logs-app  |     return await fn(*args, **kwargs)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/_asyncio.py", line 47, in __call__
mailcow-logs-app  |     do = self.iter(retry_state=retry_state)
mailcow-logs-app  |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/__init__.py", line 326, in iter
mailcow-logs-app  |     raise retry_exc from fut.exception()
mailcow-logs-app  | tenacity.RetryError: RetryError[<Future at 0x78ba007297d0 state=finished raised MailcowAPIError>]
mailcow-logs-app  | 2026-02-16 11:12:59 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/status/containers: 
mailcow-logs-app  | 2026-02-16 11:12:59 - ERROR - Error fetching container status: RetryError[<Future at 0x78b9fc7c11d0 state=finished raised MailcowAPIError>]
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 67, in map_httpcore_exceptions
mailcow-logs-app  |     yield
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 371, in handle_async_request
mailcow-logs-app  |     resp = await self._pool.handle_async_request(req)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection_pool.py", line 256, in handle_async_request
mailcow-logs-app  |     raise exc from None
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection_pool.py", line 236, in handle_async_request
mailcow-logs-app  |     response = await connection.handle_async_request(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection.py", line 101, in handle_async_request
mailcow-logs-app  |     raise exc
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection.py", line 78, in handle_async_request
mailcow-logs-app  |     stream = await self._connect(request)
mailcow-logs-app  |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection.py", line 124, in _connect
mailcow-logs-app  |     stream = await self._network_backend.connect_tcp(**kwargs)
mailcow-logs-app  |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_backends/auto.py", line 31, in connect_tcp
mailcow-logs-app  |     return await self._backend.connect_tcp(
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_backends/anyio.py", line 113, in connect_tcp
mailcow-logs-app  |     with map_exceptions(exc_map):
mailcow-logs-app  |   File "/usr/local/lib/python3.11/contextlib.py", line 158, in __exit__
mailcow-logs-app  |     self.gen.throw(typ, value, traceback)
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_exceptions.py", line 14, in map_exceptions
mailcow-logs-app  |     raise to_exc(exc) from exc
mailcow-logs-app  | httpcore.ConnectTimeout
mailcow-logs-app  | 
mailcow-logs-app  | The above exception was the direct cause of the following exception:
mailcow-logs-app  | 
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/app/app/mailcow_api.py", line 60, in _make_request
mailcow-logs-app  |     response = await client.request(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1559, in request
mailcow-logs-app  |     return await self.send(request, auth=auth, follow_redirects=follow_redirects)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1646, in send
mailcow-logs-app  |     response = await self._send_handling_auth(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1674, in _send_handling_auth
mailcow-logs-app  |     response = await self._send_handling_redirects(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1711, in _send_handling_redirects
mailcow-logs-app  |     response = await self._send_single_request(request)
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1748, in _send_single_request
mailcow-logs-app  |     response = await transport.handle_async_request(request)
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 370, in handle_async_request
mailcow-logs-app  |     with map_httpcore_exceptions():
mailcow-logs-app  |   File "/usr/local/lib/python3.11/contextlib.py", line 158, in __exit__
mailcow-logs-app  |     self.gen.throw(typ, value, traceback)
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 84, in map_httpcore_exceptions
mailcow-logs-app  |     raise mapped_exc(message) from exc
mailcow-logs-app  | httpx.ConnectTimeout
mailcow-logs-app  | 
mailcow-logs-app  | During handling of the above exception, another exception occurred:
mailcow-logs-app  | 
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/_asyncio.py", line 50, in __call__
mailcow-logs-app  |     result = await fn(*args, **kwargs)
mailcow-logs-app  |              ^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/app/app/mailcow_api.py", line 74, in _make_request
mailcow-logs-app  |     raise MailcowAPIError(f"Failed to connect to mailcow API: {e}")
mailcow-logs-app  | app.mailcow_api.MailcowAPIError: Failed to connect to mailcow API: 
mailcow-logs-app  | 
mailcow-logs-app  | The above exception was the direct cause of the following exception:
mailcow-logs-app  | 
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/app/app/routers/status.py", line 36, in _get_containers_status_internal
mailcow-logs-app  |     containers_data = await mailcow_api.get_status_containers()
mailcow-logs-app  |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/app/app/mailcow_api.py", line 209, in get_status_containers
mailcow-logs-app  |     data = await self._make_request("/api/v1/get/status/containers")
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/_asyncio.py", line 88, in async_wrapped
mailcow-logs-app  |     return await fn(*args, **kwargs)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/_asyncio.py", line 47, in __call__
mailcow-logs-app  |     do = self.iter(retry_state=retry_state)
mailcow-logs-app  |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/__init__.py", line 326, in iter
mailcow-logs-app  |     raise retry_exc from fut.exception()
mailcow-logs-app  | tenacity.RetryError: RetryError[<Future at 0x78b9fc7c11d0 state=finished raised MailcowAPIError>]
mailcow-logs-app  | 2026-02-16 11:12:59 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/status/vmail: 
mailcow-logs-app  | 2026-02-16 11:12:59 - ERROR - Error fetching storage status: RetryError[<Future at 0x78b9fc7942d0 state=finished raised MailcowAPIError>]
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 67, in map_httpcore_exceptions
mailcow-logs-app  |     yield
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 371, in handle_async_request
mailcow-logs-app  |     resp = await self._pool.handle_async_request(req)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection_pool.py", line 256, in handle_async_request
mailcow-logs-app  |     raise exc from None
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection_pool.py", line 236, in handle_async_request
mailcow-logs-app  |     response = await connection.handle_async_request(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection.py", line 101, in handle_async_request
mailcow-logs-app  |     raise exc
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection.py", line 78, in handle_async_request
mailcow-logs-app  |     stream = await self._connect(request)
mailcow-logs-app  |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection.py", line 124, in _connect
mailcow-logs-app  |     stream = await self._network_backend.connect_tcp(**kwargs)
mailcow-logs-app  |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_backends/auto.py", line 31, in connect_tcp
mailcow-logs-app  |     return await self._backend.connect_tcp(
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_backends/anyio.py", line 113, in connect_tcp
mailcow-logs-app  |     with map_exceptions(exc_map):
mailcow-logs-app  |   File "/usr/local/lib/python3.11/contextlib.py", line 158, in __exit__
mailcow-logs-app  |     self.gen.throw(typ, value, traceback)
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_exceptions.py", line 14, in map_exceptions
mailcow-logs-app  |     raise to_exc(exc) from exc
mailcow-logs-app  | httpcore.ConnectTimeout
mailcow-logs-app  | 
mailcow-logs-app  | The above exception was the direct cause of the following exception:
mailcow-logs-app  | 
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/app/app/mailcow_api.py", line 60, in _make_request
mailcow-logs-app  |     response = await client.request(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1559, in request
mailcow-logs-app  |     return await self.send(request, auth=auth, follow_redirects=follow_redirects)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1646, in send
mailcow-logs-app  |     response = await self._send_handling_auth(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1674, in _send_handling_auth
mailcow-logs-app  |     response = await self._send_handling_redirects(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1711, in _send_handling_redirects
mailcow-logs-app  |     response = await self._send_single_request(request)
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1748, in _send_single_request
mailcow-logs-app  |     response = await transport.handle_async_request(request)
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 370, in handle_async_request
mailcow-logs-app  |     with map_httpcore_exceptions():
mailcow-logs-app  |   File "/usr/local/lib/python3.11/contextlib.py", line 158, in __exit__
mailcow-logs-app  |     self.gen.throw(typ, value, traceback)
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 84, in map_httpcore_exceptions
mailcow-logs-app  |     raise mapped_exc(message) from exc
mailcow-logs-app  | httpx.ConnectTimeout
mailcow-logs-app  | 
mailcow-logs-app  | During handling of the above exception, another exception occurred:
mailcow-logs-app  | 
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/_asyncio.py", line 50, in __call__
mailcow-logs-app  |     result = await fn(*args, **kwargs)
mailcow-logs-app  |              ^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/app/app/mailcow_api.py", line 74, in _make_request
mailcow-logs-app  |     raise MailcowAPIError(f"Failed to connect to mailcow API: {e}")
mailcow-logs-app  | app.mailcow_api.MailcowAPIError: Failed to connect to mailcow API: 
mailcow-logs-app  | 
mailcow-logs-app  | The above exception was the direct cause of the following exception:
mailcow-logs-app  | 
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/app/app/routers/status.py", line 157, in get_storage_status
mailcow-logs-app  |     vmail_data = await mailcow_api.get_status_vmail()
mailcow-logs-app  |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/app/app/mailcow_api.py", line 240, in get_status_vmail
mailcow-logs-app  |     data = await self._make_request("/api/v1/get/status/vmail")
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/_asyncio.py", line 88, in async_wrapped
mailcow-logs-app  |     return await fn(*args, **kwargs)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/_asyncio.py", line 47, in __call__
mailcow-logs-app  |     do = self.iter(retry_state=retry_state)
mailcow-logs-app  |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/__init__.py", line 326, in iter
mailcow-logs-app  |     raise retry_exc from fut.exception()
mailcow-logs-app  | tenacity.RetryError: RetryError[<Future at 0x78b9fc7942d0 state=finished raised MailcowAPIError>]
mailcow-logs-app  | 2026-02-16 11:12:59 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/domain/all: 
mailcow-logs-app  | 2026-02-16 11:12:59 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/mailbox/all: 
mailcow-logs-app  | 2026-02-16 11:12:59 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/alias/all: 
mailcow-logs-app  | 2026-02-16 11:12:59 - ERROR - Error fetching mailcow info: RetryError[<Future at 0x78b9fc796dd0 state=finished raised MailcowAPIError>]
mailcow-logs-app  | INFO:     172.18.0.1:36274 - "GET /api/stats/dashboard HTTP/1.1" 200 OK
mailcow-logs-app  | INFO:     172.18.0.1:36274 - "GET /api/stats/recent-activity?limit=11 HTTP/1.1" 200 OK
mailcow-logs-app  | 2026-02-16 11:13:04 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/status/containers: 
mailcow-logs-app  | 2026-02-16 11:13:04 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/status/vmail: 
mailcow-logs-app  | 2026-02-16 11:13:04 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/domain/all: 
mailcow-logs-app  | 2026-02-16 11:13:04 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/mailbox/all: 
mailcow-logs-app  | 2026-02-16 11:13:04 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/alias/all: 
mailcow-logs-app  | 2026-02-16 11:13:04 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/postfix/1: 
mailcow-logs-app  | 2026-02-16 11:13:23 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/status/containers: 
mailcow-logs-app  | 2026-02-16 11:13:23 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/status/vmail: 
mailcow-logs-app  | 2026-02-16 11:13:23 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/domain/all: 
mailcow-logs-app  | 2026-02-16 11:13:23 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/mailbox/all: 
mailcow-logs-app  | 2026-02-16 11:13:23 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/alias/all: 
mailcow-logs-app  | INFO:     127.0.0.1:37492 - "GET /api/health HTTP/1.1" 200 OK

DocFraggle

app.mailcow_api.MailcowAPIError: Failed to connect to mailcow API

Looks like your app container can’t connect to your mailcow API

maybl8

DocFraggle
What could cause that?
Should I just try to restart the server?
Mail seems to be working ok.

DocFraggle

maybl8 At first restart the stack, then maybe the server

maybl8

DocFraggle
went from bad to worse.
did the up and down of the stack
restarted and now I can’t even load the page.
I don’t know what happened.
Mail is working

DocFraggle

maybl8 What’s in the logs now? Are the containers even running?

maybl8

DocFraggle
Looks like it just repeats the same thing over and over:

mailcow-logs-app  | tenacity.RetryError: RetryError[<Future at 0x7e64a0921e10 state=finished raised MailcowAPIError>]
mailcow-logs-app  | 2026-02-16 13:31:49 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/mailbox/all: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:31:49 - ERROR - ✗ Failed to update mailbox statistics: RetryError[<Future at 0x7e64a0920f50 state=finished raised MailcowAPIError>]
mailcow-logs-app  | INFO:     127.0.0.1:34404 - "GET /api/health HTTP/1.1" 200 OK
mailcow-logs-app  | 2026-02-16 13:31:57 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/alias/all: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:31:57 - ERROR - ✗ Failed to update alias statistics: RetryError[<Future at 0x7e64a0920650 state=finished raised MailcowAPIError>]
mailcow-logs-app  | 2026-02-16 13:32:01 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/postfix/500: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:32:05 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/rspamd-history/200: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:32:09 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/netfilter/500: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:32:13 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/postfix/500: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:32:17 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/rspamd-history/200: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:32:21 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/netfilter/500: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | INFO:     127.0.0.1:52274 - "GET /api/health HTTP/1.1" 200 OK
mailcow-logs-app  | 2026-02-16 13:32:25 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/postfix/500: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:32:25 - ERROR - [ERROR] Postfix fetch error: RetryError[<Future at 0x7e64a0938bd0 state=finished raised MailcowAPIError>]
mailcow-logs-app  | 2026-02-16 13:32:29 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/rspamd-history/200: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:32:29 - ERROR - [ERROR] Rspamd fetch error: RetryError[<Future at 0x7e64a09395d0 state=finished raised MailcowAPIError>]
mailcow-logs-app  | 2026-02-16 13:32:33 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/netfilter/500: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:32:33 - ERROR - [ERROR] Netfilter fetch error: RetryError[<Future at 0x7e64a0939b50 state=finished raised MailcowAPIError>]
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 67, in map_httpcore_exceptions
mailcow-logs-app  |     yield
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 371, in handle_async_request
mailcow-logs-app  |     resp = await self._pool.handle_async_request(req)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection_pool.py", line 256, in handle_async_request
mailcow-logs-app  |     raise exc from None
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection_pool.py", line 236, in handle_async_request
mailcow-logs-app  |     response = await connection.handle_async_request(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection.py", line 101, in handle_async_request
mailcow-logs-app  |     raise exc
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection.py", line 78, in handle_async_request
mailcow-logs-app  |     stream = await self._connect(request)
mailcow-logs-app  |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_async/connection.py", line 124, in _connect
mailcow-logs-app  |     stream = await self._network_backend.connect_tcp(**kwargs)
mailcow-logs-app  |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_backends/auto.py", line 31, in connect_tcp
mailcow-logs-app  |     return await self._backend.connect_tcp(
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_backends/anyio.py", line 113, in connect_tcp
mailcow-logs-app  |     with map_exceptions(exc_map):
mailcow-logs-app  |   File "/usr/local/lib/python3.11/contextlib.py", line 158, in __exit__
mailcow-logs-app  |     self.gen.throw(typ, value, traceback)
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpcore/_exceptions.py", line 14, in map_exceptions
mailcow-logs-app  |     raise to_exc(exc) from exc
mailcow-logs-app  | httpcore.ConnectError: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  |
mailcow-logs-app  | The above exception was the direct cause of the following exception:
mailcow-logs-app  |
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/app/app/mailcow_api.py", line 60, in _make_request
mailcow-logs-app  |     response = await client.request(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1559, in request
mailcow-logs-app  |     return await self.send(request, auth=auth, follow_redirects=follow_redirects)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1646, in send
mailcow-logs-app  |     response = await self._send_handling_auth(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1674, in _send_handling_auth
mailcow-logs-app  |     response = await self._send_handling_redirects(
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1711, in _send_handling_redirects
mailcow-logs-app  |     response = await self._send_single_request(request)
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_client.py", line 1748, in _send_single_request
mailcow-logs-app  |     response = await transport.handle_async_request(request)
mailcow-logs-app  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 370, in handle_async_request
mailcow-logs-app  |     with map_httpcore_exceptions():
mailcow-logs-app  |   File "/usr/local/lib/python3.11/contextlib.py", line 158, in __exit__
mailcow-logs-app  |     self.gen.throw(typ, value, traceback)
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/httpx/_transports/default.py", line 84, in map_httpcore_exceptions
mailcow-logs-app  |     raise mapped_exc(message) from exc
mailcow-logs-app  | httpx.ConnectError: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  |
mailcow-logs-app  | During handling of the above exception, another exception occurred:
mailcow-logs-app  |
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/_asyncio.py", line 50, in __call__
mailcow-logs-app  |     result = await fn(*args, **kwargs)
mailcow-logs-app  |              ^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/app/app/mailcow_api.py", line 74, in _make_request
mailcow-logs-app  |     raise MailcowAPIError(f"Failed to connect to mailcow API: {e}")
mailcow-logs-app  | app.mailcow_api.MailcowAPIError: Failed to connect to mailcow API: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  |
mailcow-logs-app  | The above exception was the direct cause of the following exception:
mailcow-logs-app  |
mailcow-logs-app  | Traceback (most recent call last):
mailcow-logs-app  |   File "/app/app/scheduler.py", line 504, in fetch_and_store_netfilter
mailcow-logs-app  |     logs = await mailcow_api.get_netfilter_logs(count=settings.fetch_count_netfilter)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/app/app/mailcow_api.py", line 141, in get_netfilter_logs
mailcow-logs-app  |     data = await self._make_request(f"/api/v1/get/logs/netfilter/{count}")
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/_asyncio.py", line 88, in async_wrapped
mailcow-logs-app  |     return await fn(*args, **kwargs)
mailcow-logs-app  |            ^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/_asyncio.py", line 47, in __call__
mailcow-logs-app  |     do = self.iter(retry_state=retry_state)
mailcow-logs-app  |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mailcow-logs-app  |   File "/usr/local/lib/python3.11/site-packages/tenacity/__init__.py", line 326, in iter
mailcow-logs-app  |     raise retry_exc from fut.exception()
mailcow-logs-app  | tenacity.RetryError: RetryError[<Future at 0x7e64a0939b50 state=finished raised MailcowAPIError>]
mailcow-logs-app  | INFO:     127.0.0.1:36466 - "GET /api/health HTTP/1.1" 200 OK
mailcow-logs-app  | 2026-02-16 13:33:01 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/postfix/500: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:33:01 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/rspamd-history/200: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:33:09 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/netfilter/500: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:33:11 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/postfix/500: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:33:17 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/rspamd-history/200: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:33:19 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/netfilter/500: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | INFO:     127.0.0.1:48042 - "GET /api/health HTTP/1.1" 200 OK
mailcow-logs-app  | 2026-02-16 13:33:25 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/postfix/500: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:33:25 - ERROR - [ERROR] Postfix fetch error: RetryError[<Future at 0x7e64a093d190 state=finished raised MailcowAPIError>]
mailcow-logs-app  | 2026-02-16 13:33:27 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/rspamd-history/200: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:33:27 - ERROR - [ERROR] Rspamd fetch error: RetryError[<Future at 0x7e64a093ee50 state=finished raised MailcowAPIError>]
mailcow-logs-app  | 2026-02-16 13:33:33 - ERROR - Request error for https://mail.dccathome.com/api/v1/get/logs/netfilter/500: [Errno -3] Temporary failure in name resolution
mailcow-logs-app  | 2026-02-16 13:33:33 - ERROR - [ERROR] Netfilter fetch error: RetryError[<Future at 0x7e64a093f7d0 state=finished raised MailcowAPIError>]

DocFraggle

It seems like there is a problem with your Docker network / Routing / Firewall… can’t really help in this case. Anything you changed at 2/12/2026 on your system?

maybl8

DocFraggle
I changed the DNS on my router.
Let me see if the problem is there.

I also seen the ip address I have has been flagged in spamhaus but I don’t use my server to send out mail.
so I don’t think that matters.

[unknown]
Changed the DNS on the router and restarted the server . log viewer back working now.
It’s weird I didn’t have any other issues anywhere on my network.

maybl8

pkernstock
Thanks
OOps I thought I had the passwords hidden or x’d out.

maybl8

maybl8
Trying to use this function but when I click on the icon nothing happens.

Terminal Viewer: Added a terminal icon (>_) in the footer to view application logs directly from the UI.

shlomi

maybl8
run docker compose down and docker compose up -d
The container should create the file in data/container.log

maybl8

shlomi

[demo@mail data]$ ls -la
total 28
drwxr-xr-x  7 root root 4096 May  7  2023 .
drwxr-xr-x  8 root root 4096 Jan 29 07:57 ..
drwxr-xr-x  7 root root 4096 Jan 23  2025 assets
drwxr-xr-x 12 root root 4096 Jan 23  2025 conf
drwxr-xr-x 17 root root 4096 Sep 10 08:11 Dockerfiles
drwxr-xr-x  8 root root 4096 May  7  2023 hooks
drwxr-xr-x 14 root root 4096 Jan 29 07:57 web

accolon

maybl8 [demo@mail data]$ ls -la

You’re listing mailcow’s data folder, not the one from Mailcow Logs Viewer.

maybl8

accolon
I don’t know where the folder is located.

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