Miscellaneous first checks

• I checked that all ports are open and not blocked by my ISP / hosting provider.
• I know that SSL errors are likely the result of a wrong setup on the user side and not caused by DMS itself. I'm confident my setup is correct.

Affected Component(s)

Email delivery

What happened and when does this occur?

Suddenly at around 4:30 AM today, this started happening, seems.

I got LOADS of errors like these:

Jun 28 04:53:49 myserv amavis[881]: (!)_DIE: Suicide in child_init_hook: BDB can't connect db env. at /var/lib/amavis/db: BDB0087 DB_RUNRECOVERY: Fatal error, run database recovery, No such file or directory. at (eval 90) line 338.
Jun 28 04:53:49 myserv amavis[882]: (!!)TROUBLE in child_init_hook: BDB can't connect db env. at /var/lib/amavis/db: BDB0087 DB_RUNRECOVERY: Fatal error, run database recovery, No such file or directory. at (eval 90) line 338.

What I did to "resolve" this issue was:

• Add amavis: root to postfix-aliases.cf
• Delete (rename) /var/lib/amavis
• Restart mailserver

Those errors seem to be gone now. But I've no idea why they started or what they mean.

Strange that this happened on the same day I upgraded to 11.1.0 (from 11.0.0)

After what I did above, I sent an email and attempted to receive an email.

Especially because I'm seeing a lot of these (even for the emails I sent and tried to receive):

Jun 28 06:29:18 myserv postfix/error[2148]: 724A84809507: to=[email protected], relay=none, delay=0.77, delays=0.68/0/0/0.09, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to 127.0.0.1[127.0.0.1]:10024: Connection refused)

But after some time, seems the emails did process. Like if there was some queue holding up.

So, things seem OK now, but I'm confused about why did this happen.

DMS version

v11.1.0

What operating system is DMS running on?

Linux

What instruction set architecture is DMS running on?

x86_64 / AMD64

What container orchestration tool are you using?

Docker Compose

docker-compose.yml

No response

Relevant log output

No response

Other relevant information

No response

What level of experience do you have with Docker and mail servers?

• I am inexperienced with docker
• I am inexperienced with mail servers
• I am uncomfortable with the CLI

Code of conduct

• I have read this project's Code of Conduct and I agree
• I have read the README and the documentation and I searched the issue tracker but could not find a solution

Improvements to this form?

No response