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iPhone won't get email on company wifi

Posted on 2009-07-01
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Last Modified: 2012-05-07
I noticed that my iPhone won't get email when connected to the company WiFi. It seems like it might be a dns problem since the iPhone is set up to use activesync with exchange server on the company's external address. Has anyone else run into this? Is there a way to get this to work internally?
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Question by:tmalmond
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by:Ron Malmstead
ID: 24757923
Sounds like DNS.

This is setup through OWA correct ?...
So can you access the OWA site internally ?
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by:tmalmond
ID: 24758032
Yes, it is setup through OWA. Yes I can access the OWA site internally with the iphone. It seems like there should be a way to create an alias to point the external address (mail.company.com) to the internal server. Perhaps a host file entry?
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by:Ron Malmstead
ID: 24758078
Is the wireless router, setup to use INTERNAL dns servers ?

If so....then you should be able to resolve mail.yourdomain.com to an internal address... assuming you DO in fact have a host record for "MAIL".
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by:tmalmond
ID: 24758115
Yes, the router is set up to use internal dns servers. Yes, I have a host record for "MAIL" that points to the internal address of the server. Should I create another record for mail.company.com that points to the same address?
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by:Ron Malmstead
ID: 24758257
NO...don't do that...

It should be working as is, unless there is some other problem.

Try connecting a laptop to the wifi, then see if you can hit the OWA web.
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by:Ron Malmstead
ID: 24758265
If you can hit the webpage.... from the iPhone while connected to wifi....... I can't really see any reason it shouldn't work for the active sync...
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by:Ron Malmstead
ID: 24758281
The only other thing I can think of...is if there is some sort of dns caching going on ..on the iphone.  Where it's still resolving the mail.yourcompany.com to the external address.
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Ron Malmstead earned 500 total points
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by:tmalmond
ID: 24758349
I think the problem lies with the dns name. The internal name is mail.company.local not mail.company.com.
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by:Ron Malmstead
ID: 24758433
Good point.  I saw another forum where they were talking about the iPhone having trouble resolving anything ...".local"

You should be able to create another forward lookup zone, for "yourcompany.com" ... and put a mail record in there.
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by:Ron Malmstead
ID: 24758456
Either that or change the dns to a public dns address on the Iphone...so it will resolve to the external address.  It should work even though you would be going out then coming back in.
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Author Closing Comment

by:tmalmond
ID: 31598942
The trick was to set up a forward lookup zone on the local DNS server with the external address as described in the article. Once I did that, all was fine. Thanks for weighing in on this issue.
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