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...

shlomi

version 2.1.0 will be out in a few min - can you verify the issue still exsits?

bpsintl

shlomi I updated to 2.1.0 and I still do not see any flag or country on inbound messages. Is it supposed to show flags for all incoming messages, or only messages marked as spam?

On my settings page it says Maxmind status = configured

shlomi

bpsintl
Its for all messages not just spam.

did you map data folder?

    volumes:
      - ./data:/app/data

2 . Paste the output of:
docker exec mailcow-logs-app ls -l /app/data

bpsintl

shlomi Yes I added the data folder in the docker-compose file.

Running that command in the mailcow-logs-viewer folder I get:

-l /app/data
total 0

shlomi

bpsintl
can you share your docker-compose.yml file?
only the app part

bpsintl

shlomi Sure:

# Main Application app: image: ghcr.io/shlomiporush/mailcow-logs-viewer:latest container_name: mailcow-logs-app restart: unless-stopped depends_on: db: condition: service_healthy ports: - "${APP_PORT:-8080}:8080" volumes: - ./data:/app/data networks: - mailcow-logs-network healthcheck: test: ["CMD", "curl", "-f", "http://localhost:8080/api/health"] interval: 30s timeout: 10s retries: 3 start_period: 40s env_file: - .env

shlomi

docker compose file is ok but the data folder from what your output is empty.
can you run docker compose down and docker compose up -d ? to let the container download maxmind db’s again.

bpsintl

shlomi Done, still says total 0 when I run that docker command

shlomi

pls check logs
docker logs mailcow-logs-app

you should see

mailcow-logs-app | INFO - ✓ GeoIP City database loaded from /app/data/GeoLite2-City.mmdb
mailcow-logs-app | INFO - ✓ GeoIP ASN database loaded from /app/data/GeoLite2-ASN.mmdb

bpsintl

shlomi

INFO: Started server process [1]
INFO: Waiting for application startup.
ERROR - Error downloading City database: [Errno 13] Permission denied: ‘/app/data/GeoLite2-City.mmdb’
ERROR - No City database available
ERROR - Error downloading ASN database: [Errno 13] Permission denied: ‘/app/data/GeoLite2-ASN.mmdb’
ERROR - No ASN database available
INFO: Application startup complete.

shlomi

here its a permission error.

i hope your not running the continer as root.
because then it makes sense that the app wouldn’t have permission to save a file in data folder.

try to set the permission for this folder.
sudo chown 1000:1000 data then docker compose up -d

CK_beats

shlomi
I’m also having a problem with the country flags.

The logs output sais:

ERROR - Error downloading City database: [Errno 13] Permission denied: '/app/data/GeoLite2-City.mmdb'
ERROR - No City database available
ERROR - Error downloading ASN database: [Errno 13] Permission denied: '/app/data/GeoLite2-ASN.mmdb'
ERROR - No ASN database available

chown 1000:1000 data doesn’t work. We only have root user on the mailcow system.
What shall I do?

Output of ls -lan

insgesamt 24
drwxr-xr-x 3    0    0 4096 21. Jan 12:19 .
drwxr-xr-x 5    0    0 4096  7. Jan 18:28 ..
drwxr-xr-x 2 1000 1000 4096 20. Jan 19:27 data
-rw-r--r-- 1    0    0 1323 21. Jan 12:19 docker-compose.yml
-rw-r--r-- 1    0    0 6067 21. Jan 08:46 .env

bpsintl

I ran sudo chown 1000:1000 data then docker compose up -d and still have the permission error in the logs

shlomi

pls run in mailcow-logs-viewer folder ls -lan and paste here the output

bpsintl

total 24
drwxr-xr-x 3 0 0 4096 Jan 20 20:28 .
drwxr-xr-x 7 0 0 4096 Jan 12 15:04 ..
-rw-r–r– 1 0 0 4666 Jan 20 17:39 .env
drwxrwxrwx 2 1000 1000 4096 Jan 20 17:45 data
-rw-r–r– 1 0 0 1185 Jan 20 20:23 docker-compose.yml

shlomi

then use a docker volume run:

docker volume create maxmind_data
in docker compose file, change the volume to:

    volumes:
      - maxmind_data:/app/data

update volumes in the end of the docker compose file to:

volumes:
  mailcow_logs_viewer:
    external: true
  maxmind_data:
    external: true

bpsintl

shlomi I don’t have this at the bottom of my docker-compose.yml file:

volumes:
mailcow_logs_viewer:
external: true
maxmind_data:
external: true

Do you mean add that whole bit at the bottom?

This is what I have at the end of that file:

volumes:
postgres_data:
driver: local

shlomi

oh my setup is a bit different.
if you already created maxmind_data volume then the add

volumes:
...
  maxmind_data:
    external: true

if not then

volumes:
...
  maxmind_data:
    driver: local

bpsintl

Very strange, after doing docker compose up/down multiple times (as well as upgrading to v2.1.2) it now seems to be working with the default /data folder.

Running sudo docker exec mailcow-logs-app ls -l /app/data I see:

total 72700
-rw-r–r– 1 appuser appuser 11023699 Jan 20 08:15 GeoLite2-ASN.mmdb
-rw-r–r– 1 appuser appuser 63417044 Jan 16 09:35 GeoLite2-City.mmdb

And on incoming emails, I now see the flag and country.

storpotaten

After upgrade dashboard only shows “Loading” and the othe pages “Failed to load logs: showLoginModal is not defined”

Regards // Mike

shlomi

storpotaten
Check logs
docker logs mailcow-logs-app

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