DavidR
6
As far as I am aware B9 also changes the OE account settings, appending .b9 to the end of the mail server details. It also edits the Host file to intercept the .b9 connect to mail server.
Avast does the same thing but does it by chamging the pop3 server address to 127.0.0.1.
Both programs are effectively intercepting email in order to check it before it ends up in your inbox or before it sends email to your smtp server.
Again as far as I am aware there is no way for both programs to do this at the same time, too much likelyhood for conflict.
I used to use B9, I even bought it but I didn’t like the way it left the pop2 port 110 and smtp port 25 visible so I ended up uninstalling it. This was when I used AVG, so I felt slightly vulnerable. Now I have avast taking care of my email. There is however other functionality in B9 that you may not want to give up (script and malicious code blocking/stripping), the choice is yours but I believe you will only ever be able to run one.
There has been a similar post about another mail scanner that intercepts email and that looks like both can’t run together.