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POP3-Login into Front-End-Server fails. OWA works fine.

Posted on 2004-09-16
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Last Modified: 2008-02-26
I have set up a  Exch2003-front-end-server sitting in the DMZ.  It provides Outlook Web Access for employees outside in the internet. The mailboxes are sitting on a different server, inside our firewall protected intranet. With Outlook Web Access this works fine.
But when I try to get access to the mailboxes through POP3, I cannot log into the front-end-server. This doesn't even work from the Outlook Express installed on that Exch2003-front-end-server  itself.

When I connect with "telnet 127.0.0.1 110", the server is responding with its name and "+OK". Then I can send my user -name, but after sending the password I get a "-ERR Connect attempt failed.  Server may be down or too busy to respond."

Any ideas?
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Question by:timan72
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by:timan72
ID: 12122750
I found the solution myself:  The unencrypted, non-SSL POP3-port needed to be opened between the front-end and the back-end-server.
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modulo
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