Edit File: sieve.conf
# Fail2Ban filter for sieve authentication failures # [INCLUDES] # Read common prefixes. If any customizations available -- read them from # common.local before = common.conf [Definition] _daemon = (?:cyrus/)?(?:tim)?sieved? failregex = ^%(__prefix_line)sbadlogin: \S+ ?\[<HOST>\] \S+ authentication failure$ ignoreregex = # Author: Jan Wagner <waja@cyconet.org>