iOS4 with MS Exchange 2003 issue

Same here with no resolution. I tried many ways but did not workout. All my other email inbox have no issues but the exchange (corporate) inbox is empty but other folders like sent mails, sub folders, etc... are syncing. If you find any resolution please let me know too...

I haven't been able to sync to my corporate email account since upgrading my 3G to OS4. Never had a problem prior to this.
I've wiped out my phone numerous times today and restored it from scratch. Then added my account info. Still no joy.
I'm bringing it to the Genius bar tomorrow.

I had the same issue. It appears that the mail client in iOS 4 does not like CNAME's. I had to change our DNS zone to use A records instead of CNAME's for our mail server.

I work for a huge company and unless there are more people having issues I think I am out of luck. Others in my company have successfully updated to iOS 4 and have gotten it working with our servers.
I have an appointment at the Genius Bar later today. Hopefully they'll figure something out but I'm not hopeful.
I may have to switch to a Droid... 😟

Hi all,

I had the same issue.
It seems to be related to DNS resolution. I tried changing the Wifi connection on the iPhone to use the Google DNS servers instead of the default ones. This seems to have solved the problem.
Also, I had not noticed that the upgrade had erased the Cellular Data Network settings.
Re-entering them restored the Cellular data connection.

Cheers

Confirmed the DNS A record, fixed our problem for wifi sync.
3G sync always worked.

We had a "glue" record created for internal network exchange activesync lookups, changing from CNAME to A fixed the issue on wifi.

All works fine except the In-box. Contacts, Calendar, E-mail sub-folders, everything. The in-box tries for a long time but eventually always says "The connection to the server has failed." This occoured on my 32 gig i Phone 3GS and is still happening on my iPhone 4.

I'll be trying the "in-box purge" tomorrow for sure. My in-box currently contains 13,847 e-mails. That is enough to scare any sync client. If there is a limit it would be nice to know what that limit is. Thanks for posting you suggestion, I hope I have similar success after trying tomorrow!

-Chuck

I ended up going to the Apple store yesterday and getting a replacement phone. I'm extremely annoyed at Apple's sloppiness with this. Apparently iOS4 only works smoothly on Exchange 2007 and 2010! That's ridiculous!
It's costing them at least one customer because I'm switching to a Verizon Droid X as soon as it is released. I need to connect to work and now I'm afraid to upgrade my iPhone 3G (which I was originally planning to do).
I'm done with the iPhone. As soon as the Droid X is out I'm gone.

I'm a corp IT architect that can confirm this issue, but not these resolutions. Can reproduce this issue at will, on all iOS 4 devices we upgrade (3G and 3GS) as well as appearing on all our iPhone 4 handsets. We are an Exchange 2003 shop with 13,000 mailboxes. This is going to be a huge issue for us very quickly. Will post back when I can confirm a workable solution.

Exporting and Importing all mailboxes is not a solution. Will look at DNS suggestion and see what we discover.

Comforting to know we're not alone.

More Details:
We have a very large mobile population in my company with thousands of apple iPhones and a growing population of iPads. We support a virtual desktop and mobile application suite.

Starting Monday, our users began upgrading to iOS4 and on Wednesday and Thursday; many more started receiving iPhone 4.

Beginning Tuesday, our helpdesk began taking increasing numbers of calls reporting intermittent loss of mail and calendar synchronization with our Microsoft Exchange services.

By Friday, almost all activsync services are down affecting all our devices with iOS3 including the entire iPad population.

There are some threads over on the apple forums suggesting a DNS change from "CNAME" to "A" type record for activesync (generically referred to in the threads as Exchange). However this has not turned out to be a solution to the issue.

At this point, we have suspended adoption and are actively working to find a way back.

Will keep this forum posted...

As I said I had about 13,500 e-mails. I archived everything before 1/1/2009 and manually moved all "large e-mails" to the archive folder. This brought me down to 6500 e-mails and everything just started working.

Apparently active sync can't handle the quantity or file size of my account. I wonder if its a defined limit in the specs by design and intent, or if there is just a size quantity threshold where it fails to establish the handshake with the mail boxes?

Best of luck to the rest of you!

This solution worked for me as well. I had 15,000 plus emails that I removed from the inbox and deleted folder.
I then set up the Exchange account on my phone again, and it began syncing within 10 seconds.

Thanks for post.

I have the same problem but with Exchange 2007, not sure of the roll up.

Started with my 3gs and iOS4 and continued with my new iPhone 4.

I had a feeling it was a DNS issue but I use OWA for sync and I doubt I'll get our Exchange provider to change this.

Can I create a separate A-record under my own domain which points to the OWA address?

Tried the IP directly but no luck, OWA runs under IIS so it needs the binding to route correctly.

Hi,

I have Lotus Notes 6.5 running at my work and want to sync my corporate agenda with my Iphone. Notes is terrible, but within IOS3 and Itunes 9.1 I managed to synch by using Outlook 2003 and synch Lotus Notes with Outlook 2003 by using MS Outlook connector.
Within IOS3 and Itunes 9.1 everything works fine.

I recently upgraded my Itunes to 9.2 and my IOS to version 4.

From that moment my Lotus calender is still synching with Outlook 2003, but synching within Itunes 9.2 and Iphone IOS4 gives the error: "Outlook connector for Domino can not be started...etc".

So there must be something wrong within the new Itunes 9.2 in combination with IOS4.

Is there a solution to fix this, because I was so happy that I had finaly managed to synch my Lotus Notes calender with my Iphone and now I don't have any calender entries anymore.

I tried to delete my calender on Iphone and after that resyncing again, but that didn't work.