Hello Donald,
I understand the inconvenience.
Let's confirm whether AVG is causing this issue.
Please disable AVG Internet Security temporarily as mentioned in this article: http://support.avg.com/SupportArticleView?urlname=How-to-use-Passive-Mode to check whether it resolves the issue.
Keep us informed about the status.
Does AVG do anything whatever with outgoing messages? I forward a lot of messages to my subscribed list, and quite often I get an immediate bounce notice in my Inbox from the "System Administrator" stating the message was rejected "for spam or virus content." It happens most often when the message has a banner at the top, or a lot of links, or sometimes even one graphic of any kind. Today I tried to forward a series of political cartoons, and they bounced. AVG didn't flag them when they arrived, so why would they be rejected going out? This is very annoying.
Hello Donald,
I understand the inconvenience.
Let's confirm whether AVG is causing this issue.
Please disable AVG Internet Security temporarily as mentioned in this article: http://support.avg.com/SupportArticleView?urlname=How-to-use-Passive-Mode to check whether it resolves the issue.
Keep us informed about the status.