Resolved Postfix SMTP server: errors from mail-lf0-f51.google.com

[garcue]

Hello everyone,

I just set up my mail server with a new ssl wildcard certificate purchased in comodo.

In principle everything works, I send and receive mail without problem.

except when they send mails from gmail accounts to a certain domain, then the server itself sends me this mail

Transcript of session follows.


Out: 220 panel.domain.com ESMTP Postfix (Debian/GNU)

In: EHLO mail-lf0-f51.google.com

Out: 250-panel.domain.com

Out: 250-PIPELINING

Out: 250-SIZE 51200000

Out: 250-ETRN

Out: 250-STARTTLS

Out: 250-AUTH DIGEST-MD5 CRAM-MD5 PLAIN LOGIN

Out: 250-ENHANCEDSTATUSCODES

Out: 250-8BITMIME

Out: 250 DSN

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 know why it can be?

 

[UFHH01]

Hi garcue,

if you experience issues as:

TLS not available due to local problem

... you might consider to have a look at:

=> Unable to send mail using STARTTLS authentication: 4.7.0 TLS not available due to local problem​

Other used links for you might be:

=> hitsoluciones.es Domain Health
=> Newsletters spam test by mail-tester.com​