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IMAP and POP mail not working on Exchange 2013

Posted on 2014-12-30
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Last Modified: 2015-01-12
We are trying to use Servicedesk Plus, which only supports POP3 and IMAP, and the email account is on a new Exchange 2013 server.
I have POP and IMAP services started.  I can get an outlook client to connect but there is no email showing at all.  If I use OWA the inbox has many emails in it.

If I had know Servicedesk only used POP and IMAP I wouldn't have bought it, but we have already purchased it, so I have to get it working.

Why isn't the POP3 or IMAP on Exchange 2013 working for me?
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Question by:rand1964
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by:Amit
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by:rand1964
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It looks like those are only to configure whether you want your users themselves to be able to enable or disable POP or IMAP.  We don't want them making that choice.
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by:Jessie Gill, CISSP
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Service Desk plus connects to a mailbox on exchange, double check to see if that mailbox has POP or IMAP enabled.  

Right click mailbox-->properties-->mailbox features-->imap4 enable
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by:rand1964
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I have, and they are
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by:rand1964
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How do I test and know for sure that IMAP is enabled properly and is working on Exchange 2013?
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by:Jessie Gill, CISSP
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by:rand1964
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I've tested everything and it says it is ok.  
Using thunderbird and setting up IMAP client it authenticates and sees folders and then gives error "Server Not Available"
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by:rand1964
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IMAP and POP tests out perfect in every way...but when I connect a client, there is no email showing and I get a "Failed to update headers" error.
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by:Jessie Gill, CISSP
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can you disable AntiVirus and then try, sometimes AV software scans pop and IMAP traffic and blocks it.
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by:Jessie Gill, CISSP
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Also is their anything between like a FW or load balancer?  if So try to cut them out and direct connect to a CAS instead for testing purposes

If all the Powershell commands came back good, then its probably something thats not exchange related.  If IMAP or POP are open to the net you can always try the below link to double verify
https://testconnectivity.microsoft.com
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by:rand1964
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Sorry it took so long to respond, the antivirus is McAfee Move and works on the hypervisor...not sure how to disable that but will look into it
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by:rand1964
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I have installed Outlook onto the Exchange email server itself and tested an account with POP3.  I can send email but cannot receive email to that account.
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by:rand1964
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I guess I am going to have to call Microsoft.
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rand1964 earned 0 total points
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After 6.5 hours straight on the phone with Microsoft, it turned out to be that we had these "*" asterisks in front of our accepted domains...like *.company.com
Removed them and everything started working.
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by:rand1964
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It was preventing authentication, saying "extest user is in different AD site than mailbox"
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Author Closing Comment

by:rand1964
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It took support from Microsoft to get this resolved.  I appreciate all the other suggestions, but in the end it was Microsoft that solved it.
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