Hello,
Yesterday, I came up to a strange situation:
I was receiving thousands of bounces to
<a lot of different usernames>@<mydomain>.
Since <mydomain> is in my rcpthosts/locals file, I was accepting these
messages. But <a lot of different usernames> didn't exist so these
messages were going to postmaster.
My mailserver had a lot of traffic, its logfiles were very large and the
mailbox of postmaster become unreadable.
Is there any way to prevent my mail servers from these types of attack?
Thanks for your time,
George Stathakopoulos
