I have turned off mail scanning because aVast complains about SSL/TTL servers. If the service wants to protect its servers by requiring this I don’t see that there is much I can do about it. Have I taken appropriate action?
avast! 6.x, 7.x: SSL Problems The Mail Shield may not scan some e-mails - see https://support.avast.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=842. Whilst this is an old article and mentions avast6 it is relevant for avast7 also.
Yes, I had to disable smtp scaning as well. Otherwise it didn’t sent with an attachment. Only plain text did successfully.
Your problem is different to that of the OP, so posting in multiple unrelated topics only confuses the issue and duplicates effort for those trying to help. You should start your own ‘new topic’ here http://forum.avast.com/index.php?board=2.0 (click the New Topic button) and we will try to help there.