Can't login to Dovecot during distributed imap login attack


Sep 25, 2017
North America
cPanel Access Level
Root Administrator
Can't login to Dovecot, e.g. from Cpanel "Check Mail" link to Roundcube, when distributed imap/pop3 login attack is going on. The question isn't about attack mitigation, but how to prevent it to from locking out imap login with correct password for the same email account at least temporary. Is it some standard PAM setup issue?
Contents /etc/pam.d/dovecot are:
auth required
auth include system-auth
account include system-auth
session include system-auth

CentOS 7.9.2009 Cpanel v94.0.4
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