My server is under attack

[mahdi717]

Hi,
My server is under attack and couple of emails getting locked out every 4-5 minutes, we are using port 25 for SMPT.
I checked the firewall logs and blocked every suspicious IP address but the issue is still on going.
Had anyone the same experience and know how to resolve it?
How can I find the IP address which trying to login to those Email addresses?
Thanks,

[phoenix]

Have you look at any of the forum threads that actually cover this topic? A search would be a good place to start and you should always post the full output of the following command:

Code: Select all

zmcontrol -v