• host

      Moolevel 2
    • Edited

    esackbauer
    By normal server in this case I mean a server (no virtual machine on my pc) hosted by a server hoster called dashserv.io Icon (dashserv)

    , where normally there is no firewall in front of the server and no local firewall running.

    Edit: I have never dealt with the DNS resolution, how can I check this?

      • DocFraggle

        • Community Hero
        Moolevel 245

      host I have never dealt with the DNS resolution, how can I check this?

      Run

      dig fuzzy.mailcow.email +short
      dig github.com +short
      dig hub.docker.com +short

      on your host system.

      Do you have selinux enabled? And please use “docker compose” instead of “docker-compose”. The command “docker-compose” is the standalone version and may not be compatible with your docker version

        • host

            Moolevel 2
          • Edited

          DocFraggle

          Output:
          root@mail:/opt/mailcow-dockerized# dig fuzzy.mailcow.email +short
          95.217.129.125
          root@mail:/opt/mailcow-dockerized# dig github.com +short
          140.82.121.3
          root@mail:/opt/mailcow-dockerized# dig hub.docker.com +short
          elb-default.us-east-1.aws.dckr.io.
          54.156.140.159
          52.44.227.212
          44.221.37.199

          And unbound stills unhealthy with “docker compose” command

          • DocFraggle

            • Community Hero
            Moolevel 245

          DocFraggle Do you have selinux enabled?

          👆

          Please paste the output of

          iptables -L
          iptables -t nat -L
          • host replied to this.
            • host

                Moolevel 2
              • Edited

              DocFraggle

              iptables -L
              Output:
              `root@mail:/opt/mailcow-dockerized# iptables -L
              Chain INPUT (policy ACCEPT)
              target prot opt source destination

              Chain FORWARD (policy DROP)
              target prot opt source destination
              MAILCOW all – anywhere anywhere /* mailcow */
              DOCKER-USER all – anywhere anywhere
              DOCKER-ISOLATION-STAGE-1 all – anywhere anywhere
              ACCEPT all – anywhere anywhere ctstate RELATED,ESTABLISHED
              DOCKER all – anywhere anywhere
              ACCEPT all – anywhere anywhere
              ACCEPT all – anywhere anywhere
              ACCEPT all – anywhere anywhere ctstate RELATED,ESTABLISHED
              DOCKER all – anywhere anywhere
              ACCEPT all – anywhere anywhere
              ACCEPT all – anywhere anywhere

              Chain OUTPUT (policy ACCEPT)
              target prot opt source destination

              Chain DOCKER (2 references)
              target prot opt source destination
              ACCEPT tcp – anywhere 172.22.1.5 tcp dpt:8983
              ACCEPT tcp – anywhere 172.22.1.249 tcp dpt:redis
              ACCEPT tcp – anywhere 172.22.1.6 tcp dpt:mysql
              ACCEPT tcp – anywhere 172.22.1.250 tcp dpt:pop3
              ACCEPT tcp – anywhere 172.22.1.250 tcp dpt:imap2
              ACCEPT tcp – anywhere 172.22.1.250 tcp dpt:imaps
              ACCEPT tcp – anywhere 172.22.1.250 tcp dpt:pop3s
              ACCEPT tcp – anywhere 172.22.1.250 tcp dpt:sieve
              ACCEPT tcp – anywhere 172.22.1.250 tcp dpt:12345
              ACCEPT tcp – anywhere 172.22.1.253 tcp dpt:smtp
              ACCEPT tcp – anywhere 172.22.1.253 tcp dpt:submissions
              ACCEPT tcp – anywhere 172.22.1.253 tcp dpt:submission

              Chain DOCKER-ISOLATION-STAGE-1 (1 references)
              target prot opt source destination
              DOCKER-ISOLATION-STAGE-2 all – anywhere anywhere
              DOCKER-ISOLATION-STAGE-2 all – anywhere anywhere
              RETURN all – anywhere anywhere

              Chain DOCKER-ISOLATION-STAGE-2 (2 references)
              target prot opt source destination
              DROP all – anywhere anywhere
              DROP all – anywhere anywhere
              RETURN all – anywhere anywhere

              Chain DOCKER-USER (1 references)
              target prot opt source destination
              RETURN all – anywhere anywhere

              Chain MAILCOW (1 references)
              target prot opt source destination
              DROP tcp – anywhere anywhere /* mailcow isolation */
              root@mail:/opt/mailcow-dockerized#`

              iptables -t nat -L
              Output:
              `root@mail:/opt/mailcow-dockerized# iptables -t nat -L
              Chain PREROUTING (policy ACCEPT)
              target prot opt source destination
              DOCKER all – anywhere anywhere ADDRTYPE match dst-type LOCAL

              Chain INPUT (policy ACCEPT)
              target prot opt source destination

              Chain OUTPUT (policy ACCEPT)
              target prot opt source destination
              DOCKER all – anywhere !127.0.0.0/8 ADDRTYPE match dst-type LOCAL

              Chain POSTROUTING (policy ACCEPT)
              target prot opt source destination
              MASQUERADE all – 172.22.1.0/24 anywhere
              MASQUERADE all – 172.17.0.0/16 anywhere
              MASQUERADE tcp – 172.22.1.5 172.22.1.5 tcp dpt:8983
              MASQUERADE tcp – 172.22.1.249 172.22.1.249 tcp dpt:redis
              MASQUERADE tcp – 172.22.1.6 172.22.1.6 tcp dpt:mysql
              MASQUERADE tcp – 172.22.1.250 172.22.1.250 tcp dpt:pop3
              MASQUERADE tcp – 172.22.1.250 172.22.1.250 tcp dpt:imap2
              MASQUERADE tcp – 172.22.1.250 172.22.1.250 tcp dpt:imaps
              MASQUERADE tcp – 172.22.1.250 172.22.1.250 tcp dpt:pop3s
              MASQUERADE tcp – 172.22.1.250 172.22.1.250 tcp dpt:sieve
              MASQUERADE tcp – 172.22.1.250 172.22.1.250 tcp dpt:12345
              MASQUERADE tcp – 172.22.1.253 172.22.1.253 tcp dpt:smtp
              MASQUERADE tcp – 172.22.1.253 172.22.1.253 tcp dpt:submissions
              MASQUERADE tcp – 172.22.1.253 172.22.1.253 tcp dpt:submission

              Chain DOCKER (2 references)
              target prot opt source destination
              RETURN all – anywhere anywhere
              RETURN all – anywhere anywhere
              DNAT tcp – anywhere localhost tcp dpt:18983 to:172.22.1.5:8983
              DNAT tcp – anywhere localhost tcp dpt:7654 to:172.22.1.249:6379
              DNAT tcp – anywhere localhost tcp dpt:13306 to:172.22.1.6:3306
              DNAT tcp – anywhere anywhere tcp dpt:pop3 to:172.22.1.250:110
              DNAT tcp – anywhere anywhere tcp dpt:imap2 to:172.22.1.250:143
              DNAT tcp – anywhere anywhere tcp dpt:imaps to:172.22.1.250:993
              DNAT tcp – anywhere anywhere tcp dpt:pop3s to:172.22.1.250:995
              DNAT tcp – anywhere anywhere tcp dpt:sieve to:172.22.1.250:4190
              DNAT tcp – anywhere localhost tcp dpt:19991 to:172.22.1.250:12345
              DNAT tcp – anywhere anywhere tcp dpt:smtp to:172.22.1.253:25
              DNAT tcp – anywhere anywhere tcp dpt:submissions to:172.22.1.253:465
              DNAT tcp – anywhere anywhere tcp dpt:submission to:172.22.1.253:587
              root@mail:/opt/mailcow-dockerized#`

              • DocFraggle

                • Community Hero
                Moolevel 245

              Hm, that looks okay. But why do you ignore my question for selinux? 😃

              Do you have selinux enabled? If yes, please disable it.

              Maybe try to shutdown the stack, reboot the system and fire it up again

              docker compose down

              reboot

              docker compose up -d

              • host replied to this.
                • host

                    Moolevel 2
                  • Edited

                  DocFraggle

                  Sorry I don’t have selinux enabled and after rebooting mailcow and the server it still doesn’t work

                  • DocFraggle

                    • Community Hero
                    Moolevel 245

                  OK… please post the output of

                  docker exec mailcowdockerized-unbound-mailcow-1 dig fuzzy.mailcow.email +trace

                  to show whats going on from inside the container

                  • host replied to this.
                    • host

                        Moolevel 2
                      • Edited

                      DocFraggle
                      Output:
                      `root@mail:/opt/mailcow-dockerized# docker exec mailcowdockerized-unbound-mailcow-1 dig fuzzy.mailcow.email +trace

                      ; <<>> DiG 9.18.27 <<>> fuzzy.mailcow.email +trace
                      ;; global options: +cmd
                      . 512987 IN NS a.root-servers.net.
                      . 512987 IN NS b.root-servers.net.
                      . 512987 IN NS c.root-servers.net.
                      . 512987 IN NS d.root-servers.net.
                      . 512987 IN NS e.root-servers.net.
                      . 512987 IN NS f.root-servers.net.
                      . 512987 IN NS g.root-servers.net.
                      . 512987 IN NS h.root-servers.net.
                      . 512987 IN NS i.root-servers.net.
                      . 512987 IN NS j.root-servers.net.
                      . 512987 IN NS k.root-servers.net.
                      . 512987 IN NS l.root-servers.net.
                      . 512987 IN NS m.root-servers.net.
                      . 512987 IN RRSIG NS 8 0 518400 20250122050000 20250109040000 26470 . fCi0bd1Nz+rH7oLSkpyNLACAIuBAd7oWCYPIrX0cCj0UYtT1Ly/YMmH2 ItjyRjXRXi/OHG401734HkGsis9+zLxf0cVG7+xg+e9xHGEMHGOOEPDn 9i6DwedWAp6OJE2Lq6wfZDHwdnDJBz8DplCF3lv2za/ATDpXZvTEJF2v OXu4DJwGXAxE+cOGt9Y91zokrCkCHGci89fOU+sXNhnjK//3MnDL/+/0 WQjCZu7mofpbW4JKXMmqlHw1VX0udz2JDJntglwW0fQT5tP+K5rGFOys ZdLXGxl7N4JT0PHW3FbARVXD0pA4HZ/KL7jdGmUSMXp2GHtznMEH2Jwd EVDrXA==
                      ;; Received 525 bytes from 127.0.0.11#53(127.0.0.11) in 4 ms

                      ;; UDP setup with 2001:500:9f::42#53(2001:500:9f::42) for fuzzy.mailcow.email failed: network unreachable.
                      ;; no servers could be reached

                      ;; UDP setup with 2001:500:9f::42#53(2001:500:9f::42) for fuzzy.mailcow.email failed: network unreachable.
                      ;; no servers could be reached

                      ;; UDP setup with 2001:500:9f::42#53(2001:500:9f::42) for fuzzy.mailcow.email failed: network unreachable.
                      ;; UDP setup with 2801:1b8:10::b#53(2801:1b8:10::b) for fuzzy.mailcow.email failed: network unreachable.
                      ;; communications error to 192.112.36.4#53: timed out
                      ;; UDP setup with 2001:500:2d::d#53(2001:500:2d::d) for fuzzy.mailcow.email failed: network unreachable.
                      ;; communications error to 192.58.128.30#53: timed out
                      ;; UDP setup with 2001:500:2::c#53(2001:500:2::c) for fuzzy.mailcow.email failed: network unreachable.
                      ;; communications error to 192.36.148.17#53: timed out
                      ;; UDP setup with 2001:500:1::53#53(2001:500:1::53) for fuzzy.mailcow.email failed: network unreachable.
                      ;; UDP setup with 2001:7fe::53#53(2001:7fe::53) for fuzzy.mailcow.email failed: network unreachable.
                      ;; communications error to 198.41.0.4#53: timed out
                      ;; UDP setup with 2001:7fd::1#53(2001:7fd::1) for fuzzy.mailcow.email failed: network unreachable.
                      email. 172800 IN NS v0n0.nic.email.
                      email. 172800 IN NS v0n1.nic.email.
                      email. 172800 IN NS v0n2.nic.email.
                      email. 172800 IN NS v0n3.nic.email.
                      email. 172800 IN NS v2n0.nic.email.
                      email. 172800 IN NS v2n1.nic.email.
                      email. 86400 IN DS 62422 8 2 92A9DA686674B9BC30EE72224130A7C761D5B01902DA9A5A62038C79 6A16BD33
                      email. 86400 IN RRSIG DS 8 1 86400 20250122050000 20250109040000 26470 . LfRI1vK3lQfS0MXFH8j09yXXPk38g2shVIDzCpg6meStf+HgzQhcNQw9 3lEF5ubkQ0ycYO2BNAzrrCCzn9MNp33tuN2Pr3O1p+bN1f2E7Gt23uUo D/S3XMjyNOoFjaLuaJfSNIj7XeEypXOQ9LvS60FUMk9eHKdL/ejw6aMZ gGsbL4R2N6ZXBP5iqhOaGsMY0stf7qzw1ZtOtqsLxTl6/ahUxHGPjjFd sC95y4LNH2LHEARjkbyMfEVW5iDbxKehoSM6DE/6wf4JvWcvKk5QRpY3 ZvdFYRChAAE8yBVA1qjp/m6hgizGrmzt0o1pJMjE6HWhD1URzvx5W64u bQfE4g==
                      ;; Received 765 bytes from 192.5.5.241#53(f.root-servers.net) in 0 ms

                      ;; communications error to 65.22.26.35#53: timed out
                      ;; UDP setup with 2a01:8840:f6::35#53(2a01:8840:f6::35) for fuzzy.mailcow.email failed: network unreachable.
                      ;; UDP setup with 2a01:8840:1c::35#53(2a01:8840:1c::35) for fuzzy.mailcow.email failed: network unreachable.
                      ;; UDP setup with 2a01:8840:1a::35#53(2a01:8840:1a::35) for fuzzy.mailcow.email failed: network unreachable.
                      ;; UDP setup with 2a01:8840:1d::35#53(2a01:8840:1d::35) for fuzzy.mailcow.email failed: network unreachable.
                      ;; UDP setup with 2a01:8840:f7::35#53(2a01:8840:f7::35) for fuzzy.mailcow.email failed: network unreachable.
                      ;; UDP setup with 2a01:8840:1b::35#53(2a01:8840:1b::35) for fuzzy.mailcow.email failed: network unreachable.
                      ;; communications error to 161.232.13.35#53: timed out
                      ;; communications error to 161.232.12.35#53: timed out
                      ;; communications error to 65.22.24.35#53: timed out
                      ;; communications error to 65.22.25.35#53: timed out
                      ;; communications error to 65.22.27.35#53: timed out
                      ;; no servers could be reached`

                      • DocFraggle

                        • Community Hero
                        Moolevel 245
                      • Edited

                      OK… I have to admit I have no idea what’s wrong with your setup… my mailcow is running on Debian 12 as well without problems.
                      Is this a plain installation of Debian and mailcow or did you setup any specials?
                      Any docker overrides?

                      • host replied to this.
                        • esackbauer

                          • Community Hero
                          Moolevel 348
                        • Edited

                        host
                        I am using Debian 12 as well with no problems. Something must be wrong on your side or you are maybe using a predefined image from your hoster which has some features enabled like UFW, firewalld or SELinux.

                        A typical error is that both docker-compose (standalone) and docker compose (plugin, native) are installed and you keep using both of them. You shall always use only one of the two, and never use the other one.
                        Which one is referenced in your mailcow.conf?

                        • host replied to this.
                          • host

                              Moolevel 2

                            esackbauer

                            mailcow.conf refers to native (compose plugin) and there is no UFW, firewalld or SELinux installed.

                            • DocFraggle

                              • Community Hero
                              Moolevel 245

                            Please post the output of these commands:

                            docker network inspect bridge
                            docker network inspect mailcowdockerized_mailcow-network 
                            ip a s
                            ip r s

                            And please try this:

                            docker exec mailcowdockerized-unbound-mailcow-1 dig @8.8.8.8 fuzzy.mailcow.email

                            • host replied to this.
                              • host

                                  Moolevel 2
                                • Edited

                                ETNyx
                                I have already tried that

                                DocFraggle

                                docker network inspect bridge:
                                [
                                {
                                "Name": "bridge",
                                "Id": "72f75be34060312e1b1bdea1c7df72112d8177f1eda472cd775ca8545c5aad34",
                                "Created": "2025-01-10T17:01:54.648665288+01:00",
                                "Scope": "local",
                                "Driver": "bridge",
                                "EnableIPv6": false,
                                "IPAM": {
                                "Driver": "default",
                                "Options": null,
                                "Config": [
                                {
                                "Subnet": "172.17.0.0/16",
                                "Gateway": "172.17.0.1"
                                }
                                ]
                                },
                                "Internal": false,
                                "Attachable": false,
                                "Ingress": false,
                                "ConfigFrom": {
                                "Network": ""
                                },
                                "ConfigOnly": false,
                                "Containers": {},
                                "Options": {
                                "com.docker.network.bridge.default_bridge": "true",
                                "com.docker.network.bridge.enable_icc": "true",
                                "com.docker.network.bridge.enable_ip_masquerade": "true",
                                "com.docker.network.bridge.host_binding_ipv4": "0.0.0.0",
                                "com.docker.network.bridge.name": "docker0",
                                "com.docker.network.driver.mtu": "1500"
                                },
                                "Labels": {}
                                }
                                ]

                                docker network inspect mailcowdockerized_mailcow-network ip a s:
                                [
                                {
                                "Name": "mailcowdockerized_mailcow-network",
                                "Id": "5a5e084a0d4b66a64b5ec75224614d4ac83c0c981c0d0cd09e9cddcfb6373b3e",
                                "Created": "2025-01-09T19:44:13.537753289+01:00",
                                "Scope": "local",
                                "Driver": "bridge",
                                "EnableIPv6": true,
                                "IPAM": {
                                "Driver": "default",
                                "Options": null,
                                "Config": [
                                {
                                "Subnet": "172.22.1.0/24",
                                "Gateway": "172.22.1.1"
                                },
                                {
                                "Subnet": "fd4d:6169:6c63:6f77::/64",
                                "Gateway": "fd4d:6169:6c63:6f77::1"
                                }
                                ]
                                },
                                "Internal": false,
                                "Attachable": false,
                                "Ingress": false,
                                "ConfigFrom": {
                                "Network": ""
                                },
                                "ConfigOnly": false,
                                "Containers": {
                                "0ed29c822b03c7bd5e4f92b80e0271c93769107b4774aa177546cce19803ee43": {
                                "Name": "mailcowdockerized-dockerapi-mailcow-1",
                                "EndpointID": "f7c224b4c993ae9e5022ab58d3defbbc88475ec77639f8a25d06ac9f2b139a54",
                                "MacAddress": "02:42:ac:16:01:04",
                                "IPv4Address": "172.22.1.4/24",
                                "IPv6Address": "fd4d:6169:6c63:6f77::5/64"
                                },
                                "1206f8867cec1d76bc01ce5cec985adcdff9d9f9525d57ddacd4713a1130a74e": {
                                "Name": "mailcowdockerized-memcached-mailcow-1",
                                "EndpointID": "029d9a0df736514d2fc41ca85de0dbd5bbf0807d7ccde7e3fa99ff221f5015b3",
                                "MacAddress": "02:42:ac:16:01:05",
                                "IPv4Address": "172.22.1.5/24",
                                "IPv6Address": "fd4d:6169:6c63:6f77::6/64"
                                },
                                "24a8cc22953669ac7d18ba509aded94b4788afd580f305f46858407d834b2587": {
                                "Name": "mailcowdockerized-olefy-mailcow-1",
                                "EndpointID": "9920ec69966b252cf13701278d87e7309075c47fc5585ad77391bba13b679d94",
                                "MacAddress": "02:42:ac:16:01:08",
                                "IPv4Address": "172.22.1.8/24",
                                "IPv6Address": "fd4d:6169:6c63:6f77::c/64"
                                },
                                "36f198afb1b75cabf7293eff08c2d15d277783060cb94f8603def5e0845b4713": {
                                "Name": "mailcowdockerized-mysql-mailcow-1",
                                "EndpointID": "1ddd3299d1747c5c2262202e6e6601b6ef061a7a346ac0e05fbe1d5728088919",
                                "MacAddress": "02:42:ac:16:01:06",
                                "IPv4Address": "172.22.1.6/24",
                                "IPv6Address": "fd4d:6169:6c63:6f77::7/64"
                                },
                                "36fda5f01e444ab08cf360717ba729ca16430b92c8c4f0a04b6c3bbc566eca48": {
                                "Name": "mailcowdockerized-sogo-mailcow-1",
                                "EndpointID": "86a0e36f3f3a7d4eb72000749686f66facc052536f8657cc3fda3f7b20a667c3",
                                "MacAddress": "02:42:ac:16:01:f8",
                                "IPv4Address": "172.22.1.248/24",
                                "IPv6Address": "fd4d:6169:6c63:6f77::3/64"
                                },
                                "6bb589dad82b45b0e902c029d747c086b495932271ff1a2bbaf3033612ab6011": {
                                "Name": "mailcowdockerized-dovecot-mailcow-1",
                                "EndpointID": "c03ac442ce044315983024a068a71bf4d294b9e51e924bd5e8a25bb3fc3cda7b",
                                "MacAddress": "02:42:ac:16:01:fa",
                                "IPv4Address": "172.22.1.250/24",
                                "IPv6Address": "fd4d:6169:6c63:6f77::9/64"
                                },
                                "88c46b70b842f53f040bfba7ebabce3d5a5bbb4c79f4d34afda054fef5208217": {
                                "Name": "mailcowdockerized-redis-mailcow-1",
                                "EndpointID": "2ba6d5df79a5780562ce1a1235c8213e435b52e354c640c83108ad36dae50d4c",
                                "MacAddress": "02:42:ac:16:01:f9",
                                "IPv4Address": "172.22.1.249/24",
                                "IPv6Address": "fd4d:6169:6c63:6f77::8/64"
                                },
                                "8bbfaed161c34a561dac02164a74cfa3de13f9deae67909a1de48bfee6851ba7": {
                                "Name": "mailcowdockerized-unbound-mailcow-1",
                                "EndpointID": "4a1818e9a7f8f3779da4c4ad26923ab4f4bf2d1f85d55ef9f06c6f0417d5d40a",
                                "MacAddress": "02:42:ac:16:01:fe",
                                "IPv4Address": "172.22.1.254/24",
                                "IPv6Address": "fd4d:6169:6c63:6f77::b/64"
                                },
                                "b2747e34198a42c9d2280c28aeb3c1095ab49ac1d6d75aecad5ad18ddcccd00f": {
                                "Name": "mailcowdockerized-php-fpm-mailcow-1",
                                "EndpointID": "233fd378e7ecb0b7356e108bd6458384e809848900db593a28c99d791c01b4e9",
                                "MacAddress": "02:42:ac:16:01:03",
                                "IPv4Address": "172.22.1.3/24",
                                "IPv6Address": "fd4d:6169:6c63:6f77::4/64"
                                },
                                "c0d489e9f54c894c8a37a411edd5603ba5862cd2955b2db570d961492b4b8ca0": {
                                "Name": "mailcowdockerized-ofelia-mailcow-1",
                                "EndpointID": "1d54bb4857e8c656e109581d077ae2e3163ca18fc7a17d1f8482b8cb2b38ae55",
                                "MacAddress": "02:42:ac:16:01:02",
                                "IPv4Address": "172.22.1.2/24",
                                "IPv6Address": "fd4d:6169:6c63:6f77::2/64"
                                },
                                "f7c4ecf2320531f6678c48acd31d64f7aff976a6a7426c52bd0ce1655eca7768": {
                                "Name": "mailcowdockerized-solr-mailcow-1",
                                "EndpointID": "2e1b092f891a985ce3034bb1fc326d52662f3c694f5d945f52d4390d6c1a0711",
                                "MacAddress": "02:42:ac:16:01:07",
                                "IPv4Address": "172.22.1.7/24",
                                "IPv6Address": "fd4d:6169:6c63:6f77::a/64"
                                }
                                },
                                "Options": {
                                "com.docker.network.bridge.name": "br-mailcow"
                                },
                                "Labels": {
                                "com.docker.compose.config-hash": "53b5069ca4ccecd7a934a515f1a80cf914e2d0c79fd956529231416df2f2ff96",
                                "com.docker.compose.network": "mailcow-network",
                                "com.docker.compose.project": "mailcowdockerized",
                                "com.docker.compose.version": "2.32.1"
                                }
                                }
                                ]

                                ip a s:
                                1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
                                link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
                                inet 127.0.0.1/8 scope host lo
                                valid_lft forever preferred_lft forever
                                inet6 ::1/128 scope host noprefixroute
                                valid_lft forever preferred_lft forever
                                2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
                                link/ether bc:24:11:72:2d:29 brd ff:ff:ff:ff:ff:ff
                                altname enp6s18
                                inet 45.137.68.65/25 brd 45.137.68.127 scope global eth0
                                valid_lft forever preferred_lft forever
                                inet6 fe80::be24:11ff:fe72:2d29/64 scope link
                                valid_lft forever preferred_lft forever
                                3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
                                link/ether 02:42:ef:de:ee:b2 brd ff:ff:ff:ff:ff:ff
                                inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
                                valid_lft forever preferred_lft forever
                                4: br-mailcow: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
                                link/ether 02:42:c5:9f:30:42 brd ff:ff:ff:ff:ff:ff
                                inet 172.22.1.1/24 brd 172.22.1.255 scope global br-mailcow
                                valid_lft forever preferred_lft forever
                                inet6 fd4d:6169:6c63:6f77::1/64 scope global nodad
                                valid_lft forever preferred_lft forever
                                inet6 fe80::42:c5ff:fe9f:3042/64 scope link
                                valid_lft forever preferred_lft forever
                                6: veth76169c0@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-mailcow state UP group default
                                link/ether 5a:fe:67:de:1e:a4 brd ff:ff:ff:ff:ff:ff link-netnsid 1
                                inet6 fe80::58fe:67ff:fede:1ea4/64 scope link
                                valid_lft forever preferred_lft forever
                                8: vethdb48414@if7: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-mailcow state UP group default
                                link/ether 7a:5c:7c:01:85:e8 brd ff:ff:ff:ff:ff:ff link-netnsid 4
                                inet6 fe80::785c:7cff:fe01:85e8/64 scope link
                                valid_lft forever preferred_lft forever
                                10: veth253fecd@if9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-mailcow state UP group default
                                link/ether 1e:2d:c3:59:ee:36 brd ff:ff:ff:ff:ff:ff link-netnsid 5
                                inet6 fe80::1c2d:c3ff:fe59:ee36/64 scope link
                                valid_lft forever preferred_lft forever
                                12: vethc127df9@if11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-mailcow state UP group default
                                link/ether 76:29:6d:c9:83:c6 brd ff:ff:ff:ff:ff:ff link-netnsid 3
                                inet6 fe80::7429:6dff:fec9:83c6/64 scope link
                                valid_lft forever preferred_lft forever
                                14: veth0447b2f@if13: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-mailcow state UP group default
                                link/ether 8a:50:62:1b:10:9f brd ff:ff:ff:ff:ff:ff link-netnsid 0
                                inet6 fe80::8850:62ff:fe1b:109f/64 scope link
                                valid_lft forever preferred_lft forever
                                16: vethe5f2abb@if15: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-mailcow state UP group default
                                link/ether 62:e5:5c:bd:19:54 brd ff:ff:ff:ff:ff:ff link-netnsid 2
                                inet6 fe80::60e5:5cff:febd:1954/64 scope link
                                valid_lft forever preferred_lft forever
                                18: veth2c53ff7@if17: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-mailcow state UP group default
                                link/ether 86:29:cb:9d:a2:7c brd ff:ff:ff:ff:ff:ff link-netnsid 7
                                inet6 fe80::8429:cbff:fe9d:a27c/64 scope link
                                valid_lft forever preferred_lft forever
                                20: veth18e78eb@if19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-mailcow state UP group default
                                link/ether 1a:e9:b3:b9:13:ca brd ff:ff:ff:ff:ff:ff link-netnsid 11
                                inet6 fe80::18e9:b3ff:feb9:13ca/64 scope link
                                valid_lft forever preferred_lft forever
                                22: veth315e58d@if21: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-mailcow state UP group default
                                link/ether 16:1b:8a:be:db:e1 brd ff:ff:ff:ff:ff:ff link-netnsid 9
                                inet6 fe80::141b:8aff:febe:dbe1/64 scope link
                                valid_lft forever preferred_lft forever
                                24: veth8f5e1db@if23: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-mailcow state UP group default
                                link/ether 0a:06:ca:b2:c5:25 brd ff:ff:ff:ff:ff:ff link-netnsid 6
                                inet6 fe80::806:caff:feb2:c525/64 scope link
                                valid_lft forever preferred_lft forever
                                26: vethcc147ce@if25: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-mailcow state UP group default
                                link/ether 02:5f:8f:68:1a:e7 brd ff:ff:ff:ff:ff:ff link-netnsid 8
                                inet6 fe80::5f:8fff:fe68:1ae7/64 scope link
                                valid_lft forever preferred_lft forever

                                ip r s:
                                default via 45.137.68.1 dev eth0 onlink
                                45.137.68.0/25 dev eth0 proto kernel scope link src 45.137.68.65
                                172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
                                172.22.1.0/24 dev br-mailcow proto kernel scope link src 172.22.1.1

                                docker exec mailcowdockerized-unbound-mailcow-1 dig @8.8.8.8 fuzzy.mailcow.email:
                                `; <<>> DiG 9.18.27 <<>> @8.8.8.8 fuzzy.mailcow.email
                                ; (1 server found)
                                ;; global options: +cmd
                                ;; Got answer:
                                ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2130
                                ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

                                ;; OPT PSEUDOSECTION:
                                ; EDNS: version: 0, flags:; udp: 512
                                ;; QUESTION SECTION:
                                ;fuzzy.mailcow.email. IN A

                                ;; ANSWER SECTION:
                                fuzzy.mailcow.email. 9033 IN A 95.217.129.125

                                ;; Query time: 4 msec
                                ;; SERVER: 8.8.8.8#53(8.8.8.8) (UDP)
                                ;; WHEN: Fri Jan 10 17:05:16 CET 2025
                                ;; MSG SIZE rcvd: 64 `

                                • DocFraggle

                                  • Community Hero
                                  Moolevel 245

                                Ok, looking good, I have no idea what’s wrong with your server… sorry…

                                10 days later
                                • Bbkalai

                                    Moolevel 5

                                  I have the same issue
                                  clean Ubuntu server installed on my Raspberry pi5
                                  ran update and upgrade
                                  installed docker which includes docker compose plugin v2.32.4
                                  all of firewall is currently handled bu OpenWrt as well as all port forwarding
                                  The logs unbound-mailcow all show DNS issue but ping and dig to fuzzy, github and docker hub all work

                                  • Bbkalai

                                      Moolevel 5

                                    OK my issue is that the unbound service doesn’t work behind a wireguard vpn from Nordvpn when was on the unprotected not work it worked testing othe providers to see if the issue is with them

                                    • Bbkalai

                                        Moolevel 5

                                      Since the server is in a VPN protected subnet it couldn’t resolve DNS even though dig shows clearly the the domains are accessible
                                      added dns servers to the conf file fixed the issue

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