setting up pop3 email in exchange 2000
I'm having trouble finding documentation on how to configure pop3 email for our remote sites to use. I have exchange 2000 running on 2000 domain. I also have gfi mail essentials 11 which has some sort of pop3 option in it.
What all do I need to get pop3 set up so users can use outlook 2000 to check their email instead of OWA.
Thanks,
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Software/Hardware used:
ASKED:
December 12, 2005 4:38 PM
UPDATED:
August 20, 2010 2:13 PM
Answer Wiki:
Check in ESM under ADMINISTRATIVE GROUPS, Your domain/server/identification name, SERVERS, Your server, Protocols, POP3. If the defualt POP3 server is present, you shouldn't have to configure anything new on the server side. Install Outlook on the client side and configure for POP3/Internet mail versus corporate workgroup mode. If the client is already configured for Corporate mode, you can change that setup to suit your needs. THere are a lot of other variables that could come in to play as to how your clients connect and manage mail, but as to the initial question, the POP3 service should install by default. If it's not, you can go through the Exchange setup again and install the protocol. HTH!
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Why use pop3 rather than imap. Actually why use pop3 rather than OWA. If you must then the only thing you need do is start the service and punch holes through your firewall.
Another thing. You need to check your users in AD to verify that POP3 or IMAP protocol has not been disabled for the user.
Also you need to open the relvant ports in your firewall or set up a forwarding rule. POP3 is TCP 110, IMAP TCP 143.
If you use POP3 you get access to the Inbox only. If you use IMAP then you get access to all the folders for the users mailbox.
Think about using secure POP3 or secure IMAP. You’ll need a certificate
Make sure that GFI is not doing POP proxy. Also make sure that authentication is being used from the client. Remember, Exchange 2000 is locked down for relay by default to only allow authenticated users. This must be passed from the client to the server. In Outlook and Outlook Express there is a check box for “My Server Requires Authentication”. This must be selected or mail will not flow.
If a telnet from the client to the Exchange server answers with the proxy of the firewall, this must be turned off and use filtered SMTP. See KB320027 that I wrote on firewalls and SMTP proxy. This article applies to pretty much any SMTP proxy, not just the Cisco PIX.
If you are looking for more information about POP3 client configuration settings consider reading more tips from industry expert David Sengupta.