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Exchange 2010 Secure IMAP/POP

Posted on 2014-11-19
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Last Modified: 2015-02-11
Hello!  I am trying to enable POP3/IMAP secure ports 993 & 995.  These ports show closed even thought he services are running and everything looks correct in the settings.  Can you please let me know what I might be doing wrong?

Exchange 2010 SP3 Enterprise
Server 2008 R2 Enterprise
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Question by:Sedgwick_County
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9 Comments
 
LVL 16

Expert Comment

by:Rajitha Chimmani
ID: 40452860
All ports will not be enabled by default. Try Telnet servername portnumber

And what is the source and destination where you see ports are closed? Just starting the services will not help. The ports must be open at the server/network level. Check for any firewalls between the client and server where you are checking
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Author Comment

by:Sedgwick_County
ID: 40452879
When I telnet nothing comes up.  POP and IMAP will only be enabled for internal network.  I am trying to connect from my PC (which is on the domain) to the server (which is on the domain).  I have full admin rights.  No firewall is enabled on the server.  I also did a netstat to see if I could see the port listening and I do not see that as well.  How do I get my server to listen on those ports?

Under SERVER CONFIGURATION and CLIENT ACCESS I go to the POP3 and IMAP4 tab.  

* Go to POP3 and bindings show port 995 for the port I want to use for an SSL connection.  Then Authentication is set to secure logon with an x.509 certificate name listed and valid.  Under connection it shows Proxy target port as 110....does that need to be changed?

* Go to IMAP and bindings shows port 993 for the port I want to use for an SSL connection. Then Authentication is set to secure logon with an x.509 certificate name listed and valid.  Under connection it shows Proxy target port as 143....does that need to be changed?

Thanks!
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LVL 16

Expert Comment

by:Rajitha Chimmani
ID: 40453027
If nothing comes up when  you telnet then that means the connection was established? In the POP3 and IMAP4 properties under General tab there is a banner string. If telnet was successful you must get that banner string.

Have you tried creating a test mailbox with POP3 enabled and test POP3 setup in Outlook?
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Author Comment

by:Sedgwick_County
ID: 40453325
All of our users are enabled to POP3.  Only a few use it though.  We are just trying to switch to secured.
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LVL 16

Expert Comment

by:Rajitha Chimmani
ID: 40453563
Ok, it should work fine though. What is the exact problem you have now? Where do you see the ports closed?
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Author Comment

by:Sedgwick_County
ID: 40453630
When I try to telnet to 993 or 995 it does not give the banner.  When I do netstat it does not show those ports are listening....thats what I think as well that its setup correctly in Exchange but I am not sure what I am missing.
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Accepted Solution

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Gareth Gudger earned 500 total points
ID: 40454220
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Author Comment

by:Sedgwick_County
ID: 40457948
Ok I might have found something that might help.  When I telnet to the server and use  telnet servername 110 I receive this:

220 SERVERNAME Microsoft ESMTP MAIL Service ready at Fri, 21 Nov 2014
 11:50:19 -0600

When I should receive this:
+OK The Microsoft Exchange POP3 service is ready.
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Author Comment

by:Sedgwick_County
ID: 40604756
I've requested that this question be deleted for the following reason:

Found different solution than what was suggested.
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