efa-project.org

Hello Friends, sometimes I got "MailScanner was attacked by a Denial Of Service attack, and has therefore deleted this part of the message. Please contact your e-mail providers for more information if you need it, giving them the whole of this report. Attack in: /var/spool/MailScanner/incoming/22353/C4A2820307.AA2E0/nmsg-22353-2.htm" this message but I couldn^t find solutions. Also I check folder but not logging any message? Occured this event, EFA stop logging but mail services running at this time. What is the problem and how to fix it?

EFA Version : 3.0.2.5
Mail Scanner : 5.0.6
Mail Watch :

Virtualization : ESXi Hypervisor
RAM : 8 GB
CPU : 2vcpu

This message is actually a generic message fired from MailScanner when it cannot process a message properly.

Common causes:

Out of disk space
Signal 13 (access denied) -- possible underlying permissions or storage I/O problem
malformed message (extremely rare) -- i haven't seen one of these, but it is theoretically possible
bug (also extremely rare)

Start with basics and focus on the underlying storage first.
After that, we can investigate this problem with some debugging...