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No Exchange IMAP email inside LAN

Posted on 2010-08-26
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Last Modified: 2012-05-10
Experts, I have a situation where a client is running Windows server 2003 and exchange 2003 and the problem is If I'm inside the LAN, using a laptop,  I cannot access the users exchange email by accessing via IMAP. However, If I go outside the LAN, like from someone's home, using the same set up they can access their exchange mail account via IMAP.
All the clients desktop are using Outlook or Entourage with an exchange server setup and sending/receiving email with no problem.
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Question by:Houston Blancett
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Expert Comment

by:sunnyc7
ID: 33535050
From within the lan
Go to the dc
Start run
Dnsmgmt.msc

Create an a record with your imap server fqdn to point to lan ip of exchange

From the workstation, see if you can ping the fqdn by name and then start outlook
Fqdn should respond with lan ip of exchange server

Thanks
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Author Comment

by:Houston Blancett
ID: 33535200
Sorry...which type of record, and would that be in the forwarding lookup zone or somewhere else?
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Author Comment

by:Houston Blancett
ID: 33535218
Never mind...just caught the "a" record...
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Author Comment

by:Houston Blancett
ID: 33535255
Should there be a particular name for this record?
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Expert Comment

by:sunnyc7
ID: 33535780
No just
mail.domain.com > ip address of exchange - type A record
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Author Comment

by:Houston Blancett
ID: 33541261
Ok in my case my mail domain is different. For example
my FQDN is domain.net, but the exchange server imap and smtp  is named mail.mymail.org. So with that in mind, should the
Record be mail.domain.net or mail.mymail.org?
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Accepted Solution

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sunnyc7 earned 500 total points
ID: 33541292
so you use domain.net > for HTTP web only ?
and use
mail.mymail.org > for emails ?

Use this mail.mymail.org

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