After installing the beta I get this error each time I check mail from my email program.
It's strange. For the avast service indicated HAS rights in the firewall.
And there is no log entry in the firewall indicating that it has been blocked.
Also if I remove the right, I get no box asking for access (the firewall always do that).
So it seems like there is something else wrong.
With the last version I could not check mail at all through avast (had to delete all entries).