Well, I didn’t get a response to the original post and in the meantime things have changed. So, another post.

I’m now running avast 4.8. It appears to me that the new smtp scanner is involved at the start and the end of the send but not during the send.

Is that right?

–Larry

PS: I know it is scanning because I asked avast to insert a scan results tag in the message and it did. It also claimed there was a potential virus in one attachment I tested with. And I can see the scanner activity at the start and end of the send.