Hi,

I’m no genius, not an Avast employee or GUru, but I also use Pegasus mail in a similar configuration as yourself.

I find that with my web hosted e-mail accounts Avast work well by using the web services mail servers IP address(s) instead of the name

You might want to try using

Server Host Name: 127.0.0.1
User Name : myname#111.111.111.111

Obviously 111. etc being replaced with your web hosting mail servers IP’s, which you hosting company should supply.

btw; there is a newer version of Pegasus (some bug fixes)

Just a thought, good luck.