I don't know about the OP, but I have AT&T/Yahoo although I only check it through the mail program on my mac. But I am having the same problem. I have no idea if the SSL/TLS Connection Detected is telling me, "Yay, you have the connection you should have!" or "There's some hideous virus coming through on your connection and you need to do something to stop it!" My email is spamming others, and I'm trying to stop it, but I don't understand what avast is telling me and it didn't stop the spam.