>>Thank you for your input. Right now I just need to resolve this issue between Outlook and Avast. The problem was not there 2 days ago and it is now. Of course a simple solution is to remove Avast plug-in from Outlook. But then all incoming emails are not checked. And although I don't open unknown emails one never knows.
>>I still think there has to be a solution to the original problem.
>
>If you haven't tried it already, uninstalling, then re-installing the product (Avast) is likely the quickest way to deal with these sorts of issues.

I have not done it simply for 2 reasons. 1. I don't have Avast product CD or program. I suppose I can download it from the web. 2. But the main issue, if you maybe remember, that about a year ago I tried to uninstalled Avast and I almost lost my computer. At that time I could not even start my PC windows 7 OS. I think Avast "does not like" to be removed.

But I have another questions, please. Maybe you could help me understand the following. First, in addition to the 3 gmail accounts I have in my Outlook 365 3 email discountasp.net accounts (my site) and they work without any glitch. And my discountasp.net emails also use port 995 for incoming messages.

But here something. When I start Outlook, I always (since about a year ago) get the message (image 1 attached). This message asks "Do you want to continue using this server" I always click on Yes. But this time (just to capture the images for this post) I clicked on View Certificate button and the image 2 (attached) appears. This one shows that the certificate is issued to .internetmailserver.net. I think (but not sure) that this has something to do with discountasp.net emails.

And I am also wondering if I should click on Install Certificate button. Do you think there is a danger in this?
I am sorry but I don't understand the purpose of the Certificate and so on. But somehow I think it is "related" to the problem I am having.

Please let me know what you think on the above comments? Thank you.