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Question Mail Log / Dovecot

othmaqsa

Regular Pleskian
Server operating system version
Ubuntu 20.04.4 LTS
Plesk version and microupdate number
18.0.44
Hello everyone,

For the following log:

dovecot: imap-login: Disconnected: Connection closed: SSL_accept() failed: error:1408F09C:SSL routines:ssl3_get_record:http request (no auth attempts in 1 secs): user=<>, rip=194.195.246.175, lip=74.208 .206.239, TLS handshaking: SSL_accept() failed: error:1408F09C:SSL routines:ssl3_get_record:http request, session=<J9MfJKji8MPCw/av>

From what I understood in the message, there was a connection attempt, from IP 194.195.246.175, but the certificate was not validated.

Is it possible to modify the DOVECOT jail by putting 1 as the number of attempts and 7200 seconds as the duration of the ban in order to block this kind of attempt?

Thank you in advance
 
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