Subject: Connection attempted on , but not configured in IMAP Internet Site Document
I too recently upgraded my 6.5.4 server to R7 and ran into the same issue for POP3 with the message “Connection attempted on , but not configured in POP3 Internet Site Document”. The server also had a similiar issue with SMTP stating “Authentication is not enabled in the SMTP Internet Site Document for”… Both of these issues stopped both inbound and outbound mail for our domain.
After some searching and reading some of Chris Linfoot’s weblogs…
I learned that I did not have the IP address of our POP3 server included in our POP3 Internet Site Document. I only had FQDN’s.
After inserting the IP address into both the POP3 and SMTP Internet Site documents and restarting the Domino Server (for good measure) things worked correctly. The IP address I used was the public IP address and not the IP address I use behind our firewall/router. I’ve read that this could make a difference depending on what kind of firewall/router you may use.