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iphone email WIFI sync while in LAN

A user has an iphone 4 and is able to sync email over 3g without a problem but when they are inside our company LAN with WIFI enabled the phone won't sync.

I have read somewhere that this is a networking error relating to DNS and not specific to the iphone but thats all i know and I'm finding it hard to fnid a solution as I don't really know what you call the problem.

We are running server 2003 and exchange 2003 sp1
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QGolden
Asked:
QGolden
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1 Solution
 
robbeCommented:
can you access OWA from the wireless using the server name you entered in the iphone? A lot of firewalls block traffic from inside the organisation to the public ip. You could create a dns record for example: mail.mypublicdomain.be poitning to the mail server. You can do this by creating a new zone file mail.mypublicdomain.be and let the (same as parent folder) refer to the internal ip of the mail server.
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dontsemeCommented:
one problem might be the SSL configuration.If you internal exchange connector has a certificate and name than the extenal sonnector certificate.

Another possible problem may be the firewall issue as stated above. One solution is to create an internal DNS pointer for the external name of the mail server.

IE mail.company.com may be 207.x.x.x on the external web but
set internal DNS to point mail.comapny.com to your internal ip of the email server ie 192.168.x.x
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EDincerCommented:
WiFi connections do not always work well with iphone4. My iphone 4 also had problems with my wifi network. Solution was manually entering IP settings in iphone 4.
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bpinningCommented:
dontseme hit the nail on the head.

Create a A record in on you server to point the external address to the LAN address of the server.

Brett
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bpinningCommented:
Also,

Are you sure you are running exchange SP1?

If you are upgrade to SP2 it works much better with the iPhone
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QGoldenAuthor Commented:
Is the procedure for this to open the Dnsmgmt program on the server and create a Host(A) under Forward Lookup Zones / domain.local, Enter mail.domin.com then the IP address to our internal mail server?

This changes the FQDN to mail.domin.com.domain.local

I still can't seem to connect
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QGoldenAuthor Commented:
THere is a dns record under Forward Loopup Zones / domain.com folder. It is a Alisa(CNAME) and is called mail with FQDN mail.domain.com and the target host is server.quigggolden.local.

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QGoldenAuthor Commented:
I am also using exchange SP2 and not sp1 as stated above
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robbeCommented:
Could answer my question above? Is it possible to access the server from the wireless using the domain name ?
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MindspielCommented:
depends, but usually nope
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QGoldenAuthor Commented:
To access OWA the address is different

OWA is https://mail.domain.com/exchange

the Server settings in iphone and other devices I've setup, other phones and ipad is mail.domain.com

The answer to your question is no I can not access OWA using Safari. Failed with both https and mail.
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QGoldenAuthor Commented:
BUMP. I'm stilling having problems with this can anybody help ??
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MindspielCommented:
Enter manually  IP & DNS setting on Iphone, also good idea is to  run some network analyzer on Iphone.

Regards,
Mind
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MindspielCommented:
Do you have active DHCP on that server to which Iphone connects?
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QGoldenAuthor Commented:
Yes the iphone is using DHCP server on wifi. sorry for late response been working on other projects and haven't had time to play with the iphone.

can I get an app network analyzer for Iphone?
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QGoldenAuthor Commented:
Got this problem sorted by following this http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_3703-Use-iPhone-on-wifi-network-without-the-need-to-reconfigure.html

Replaced owa.domainname.com with my mail.domain.com. All sorted
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