On a Plesk for Linux server, both sending and receiving emails fails with the following error found in the log file
plesk amavis: (!)DENIED ACCESS from IP 203.0.113.2, policy bank ''
plesk postfix/smtp: 883A08902100: to=<[email protected]>, relay=127.0.0.1[127.0.0.1]:10024, delay=1004, delays=1004/0.11/0/0, dsn=4.4.2, status=deferred (lost connection with 127.0.0.1[127.0.0.1] while receiving the initial server greeting)
Nov 12 07:22:53 panel postfix/error: D450A262495B3: to=<[email protected]>, relay=none, delay=0.72, delays=0.72/0/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with 127.0.0.1[127.0.0.1] while receiving the initial server greeting)
The extension Plesk Email Security is installed on the server.
The option Tools & Settings > Spam Filter > Switch on server-wide greylisting spam protection is disabled.
- The issue is also might be observed after changing outgoing mail IP.
Bugs in the extension Plesk Email Security:
For new Plesk Email Security installations: EXTCERT-2813 "Added the inet_acl option to the Amavis configuration file"
- Plesk Email Security 1.0.4 06 April 2020
For existing Plesk Email Security installations: EXTCERT-2931.
- Plesk Email Security 1.1.0 09 June 2020
Go to Extensions > Plesk Email Security > Server Settings > Advanced > Debugging
Change the value of the option Amavis log level to 1: args passed from client, some more interesting messages and click Save.
Change the value of the option Amavis log level back to default 0: startup/exit/failure messages, viruses detected and click Save.