POP3 and IMAP4 in Exchange 2003

15 pts.
Microsoft Exchange
Microsoft Windows
SQL Server
Good Day All! I have a working Exchange 2003 server. I would like to know if someone has configured POP3 and IMAP4 service along side SMTP, if so would it be possible to know how to configure it and if there are if any cons to this Exchange 2003 configuration. Thanks, Santiago

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POP3 and IMAP4 are installed by default with Exchange 2003 but are not enabled. they can coexist in tandem with each other without an issue. The protocols can be enabled using the ESM; expand servers, server name, protocols, expand the desired protocol & right click it then simply select start to fire up the virtual server. Configuring the protocols is just the same as configuring the SMTP protocol. Security wise you would be opening more vectors of attack to your exchange server as your opening ports on your firewall, consider using front-end servers tying down the security on the exchange servers, use the security & config wizard (part of 2003 server) to reduce the running services, open ports etc on the exchange boxes, general security measures that you should be taking with any server that will be accepting coms from the t’interweb.
My question to you is why do you need to have POP3 and or IMAP4 running?

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  • Shelly99
    We are using Oralce E businees suite and the notification mgmt requires you use imap4. we are in a exchange 2003 clustered environment. what are the risk in running this service for one application to send notifications?
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  • Wrobinson
    If IMAP is not exposed to the Internet then the risk is manageable. Make sure that port 143 (IMAP) is not allowed through the firewall. You will also want to make sure that port 110 (POP) is not allowed through the firewall. There is no security in obscurity, but you can mask IMAP by changing the port that it runs on and that Oracle connects to it on. The quick and efficient solution in this case would be to restrict the IP addresses that can connect to IMAP to only the Oracle server on the Default IMAP Virtual Server.
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  • Dees
    I read that you need to turn off ssl security and need to use basic authentication, doesn't that conflict with other protocols?
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