- Plesk Onyx for Linux
- During the attempt to send an email the error occurred:
PLESK_INFO: Server error: '451 4.3.0 <[email protected]>: Temporary lookup failure'
- The following records were found in /var/log/maillog:
PLESK_INFO: dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=203.0.113.2, lip=203.0.113.3, session=<LMY9FZ9aM+QfNKV3>
postfix/smtpd: lost connection after STARTTLS from host203-0-113-2. example.com[203.0.113.2]
postfix/smtpd: warning: connect to TCP map localhost:10002: Connection refused
- 3rd-party package Postfix Sender Rewriting Scheme daemon (postsrsd) is installed.
Connect to the server using SSH
# service postsrsd start
Note: More about SRS support in Plesk can be found in this article