Issue ERROR MAIL error:0A000102:SSL

[Brusteld]

Server operating system version

Ubuntu 22.04.2

Plesk version and microupdate number

18.0.53

Hello I can't connect to the email with outlook in logs shows me:

Jul 3 17:26:33 trusting-tu postfix/smtpd[66567]: connect from 44.red-88-22-92.staticip.rima-tde.net[88.22.92.44]
Jul 3 17:26:33 trusting-tu postfix/smtpd[66567]: SSL_accept error from 44.red-88-22-92.staticip.rima-tde.net[88.22.92.44]: -1
Jul 3 17:26:33 trusting-tu postfix/smtpd[66567]: warning: TLS library problem: error:0A000102:SSL routines::unsupported protocol:../ssl/statem/statem_srvr.c:1657:
Jul 3 17:26:33 trusting-tu postfix/smtpd[66567]: lost connection after CONNECT from 44.red-88-22-92.staticip.rima-tde.net[88.22.92.44]
Jul 3 17:26:33 trusting-tu postfix/smtpd[66567]: disconnect from 44.red-88-22-92.staticip.rima-tde.net[88.22.92.44] commands=0/0
Jul 3 17:26:33 trusting-tu dovecot: pop3-login: Disconnected: Connection closed: SSL_accept() failed: error:0A000102:SSL routines::unsupported protocol (no auth attempts in 0 secs): user=<>, rip=88.22.92.44, lip=87.106.236.101, TLS handshaking: SSL_accept() failed: error:0A000102:SSL routines::unsupported protocol, session=<hnrLd5j/fd1YFlws>
Jul 3 17:26:45 trusting-tu dovecot: pop3-login: Disconnected: Connection closed: SSL_accept() failed: error:0A000102:SSL routines::unsupported protocol (no auth attempts in 0 secs): user=<>, rip=193.202.122.15, lip=87.106.236.101, TLS handshaking: SSL_accept() failed: error:0A000102:SSL routines::unsupported protocol, session=</gqIeJj/9FfBynoP>

 

[Peter Debik]

You can try this:
1. Log in the server via GUI.
2. Navigate to Tools&Settings > TLS versions and ciphers management > Settings
3. Update cipher by clicking on sync now
4. Re-try to configure outlook or mobile client.

or this:

1. Access the server over SSH.
2. Open the following file in text editor: /etc/dovecot/conf.d/11-plesk-security-ssl.conf.
3. Change ssl_min_protocol=TLSv1.3 to ssl_min_protocol=TLSv1.2.
4. Save the changes and close the file.
5. Restart Dovecot service:
#service dovecot restart