Mail service: failed to bind port 0.0.0.0:25/tcp: listen tcp4 0.0.0.0:25: bind: address already in use.

[luckow]

Platform version v8.2.3 (Ubuntu 24.04.1 LTS)
Restarting the mail service brings a /bin/bash exited with code 125
Service status is stopped.
Any clue, what other service is binded to port 25?

box:locks release: mail_restart
HttpError: /bin/bash exited with code 125 signal null
at BoxError.toHttpError (/home/yellowtent/box/src/boxerror.js:109:16)
at restart (/home/yellowtent/box/src/routes/services.js:125:37)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5) {
status: 500,
internalError: BoxError: /bin/bash exited with code 125 signal null
at ChildProcess.<anonymous> (/home/yellowtent/box/src/shell.js:72:23)
at ChildProcess.emit (node:events:519:28)
at maybeClose (node:internal/child_process:1105:16)
at ChildProcess._handle.onexit (node:internal/child_process:305:5) {
reason: 'Shell Error',
details: {},
stdout: 'c1cdae98de5fb18b3204bf361e3bb484bd56b6d74e8621edb7ae9ba892203e81\n',
stdoutLineCount: 1,
stderr: 'docker: Error response from daemon: driver failed programming external connectivity on endpoint mail (8144e4d6b80711bef3085b5ae542582f9d9c91a4e6f208d2bb63894687a0477a): failed to bind port 0.0.0.0:25/tcp: listen tcp4 0.0.0.0:25: bind: address already in use.\n',
stderrLineCount: 1,
code: 125,
signal: null
},
details: {}
}

[luckow]

A homemade problem. We have refactored our Ansible role. It has installed an MTA that was previously started as Cloudron's mail service. After uninstalling the MTA, everything works as expected.

[joseph]

@luckow lsof -n -i :25 | grep LISTEN . But also sometimes, docker is also confused and out of sync with it's container processes. Can you do a systemctl restart docker and then systemctl restart box ?

[luckow]

A homemade problem. We have refactored our Ansible role. It has installed an MTA that was previously started as Cloudron's mail service. After uninstalling the MTA, everything works as expected.