sa_mail_body_size_limit and attachments

[Damian]

> Yeah, amavis was written at a time when 100k was a large attachment.
> 
> Have people mostly moved on from amavis? What are the other options?
> 
> I've been using it almost from the beginning (2001?), but trying to do
> more with it now, and it's not holding up.

Do I understand correctly, that you want a feature, where malware passes through if it is part of a sufficiently large attachment?