avast4mail+postfix cut messages with "dot" line

Hello, all!
I have a strange problem.
If my postfix receive message with line contents only one “.” symbol in the middle of message, after the avast check message is cut up to “.” line.

It is known bug for spamassain, and i can use “sendmail -oi” key for fix the problem, but what can i do with avast???

Anybody can help me?

No one :frowning:

Touday i remove avast, and now i use ClamAV