Avast has screwed up my email

Since I installed the latest update of Avast Pro antivirus on my 2 computers, one running Outlook and the other outlook express, I cannot receive or send emails. I have a POP3 account with Claranetsoho. They say it is the fault of Avast.

Please update to 7.0.1456 version, thanks.
http://forum.avast.com/index.php?topic=100608.0