system
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The way I read it, the 127 loopback config only applies to non-Outlook email clients (including outlook express). None of my 9 email addresses (spread over 3 pop3 servers and 2 smtp servers) in outlook 2003 have been modified in any way since avast! was installed yet it has popped up several warnings about the content of emails so I assume it’s working OK. Like I said, this isn’t obvious from the installation until you read the help file and do some searching through this forum.