On 23/09/2019 07:29, Plutocrat via dovecot wrote: > This is probably quite an easy question, but I haven't been able to > find the answer. I'm running a server where all the email addresses > are in the format "u...@domain.com". I've noticed that a large number > of fake login attempts use the format "user" eg. reception, service, > root, admin. > > Is it possible to prevent any such logins to these email users > > without an @domain.com? Or maybe ignore them. Or drop them from the logging.
It's not directly a solution within dovecot but "fail2ban" exists. MfG, Bernd -- Bernd Petrovitsch Email : be...@petrovitsch.priv.at LUGA : http://www.luga.at