Question Lot of mails with topic : Postfix SMTP server

[spip]

Server operating system version

CentOS Linux 7.9.2009 (Core)

Plesk version and microupdate number

18.0.49

Hello,

I receive a lot of mail with the topic : Postfix SMTP server: errors from XXX.XXX.XXX.XXX (IP)
and the message :

Transcript of session follows.

Out: 220 mydomain.com ESMTP Postfix
In: EHLO 3DAdJABN
Out: 250-mydomain.com
Out: 250-PIPELINING
Out: 250-SIZE 10240000
Out: 250-ETRN
Out: 250-STARTTLS
Out: 250-AUTH DIGEST-MD5 CRAM-MD5 PLAIN LOGIN
Out: 250-ENHANCEDSTATUSCODES
Out: 250-8BITMIME
Out: 250-DSN
Out: 250 CHUNKING
In: STARTTLS
Out: 454 4.7.0 TLS not available due to local problem

Session aborted, reason: lost connection

For other details, see the local mail logfile

Do you have an idea ?
Thank you for your help
Best Regards

 

[Monty]

Check your mail log (/var/log/maillog), you should see more information there. You may have an issue with your TLS configuration.
Have you tried plesk repair mail?

 

[spip]

Hello. thank for the tip. I changed the SMTP server by Qmail.