Thanks - I had already seen that.
The problem I have is that the email sig is enabled by default. Before I found that and even realized avast was corrupting my
email, some messages I had sent to people at big companies were mysteriously never received.
I suspect their email server saw the avast "content" and junked them.
The passage of time since I installed the product, going about my business as usual, until I discovered the problem
is the issue. These are business communications - think about that.