kerio Control and attaching files to mail.ru

Question

Kerio

kerio Control 7.1.2
I broke my head, the Internet did not give anything significant

On the server I raised Kerio OS, configured interfaces and rules The



Internet is distributed, but I try to attach a file in a new letter Mail.ru (via the web face) throws an error, they say, it was not possible to attach the file , I connect to the provider directly - the file is attached, I have already disabled all antiviruses, it does not help.

Answer 1

Try disabling Sophos antivirus and set the permission for this antivirus to skip everything. By the way, this problem does not arise from The Bat clients?