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daw2010 Author

Level 1

0 points

iPhone 3.1 Won't Sync w/ Exchange

I have been using my iPhone 3G to access company email for months. I just upgraded to OS 3.1 today (from OS 3.0.1) and got an alert saying "The account <work> requires encryption which is not supported on this iPhone." My phone will no longer access my work email!!! I know that nothing has changed on my company Exchange servers in the last 20 minutes, so OS 3.1 must be the cause. Why can't OS 3.1 access an Exchange server if OS 3.0 & 3.0.1 have had no problems?

Thanks. Dave

iPhone, iPhone OS 3.0.1, OS 3.1

Posted on Sep 9, 2009 3:50 PM

123 replies

JRB2

Level 1

4 points

Jan 6, 2010 8:44 AM in response to cml110

A fellow worker just acquired an unlocked iPhone 3G. It has been updated with OS 3.1.2. He is able to sync with Microsoft Exchange 2007 (mail, contacts and calendar). Everything is working ok.

Maybe the Exchange Server we use has the encryption requirement turned off??

Now I have to decide if I want to update my iphone 3G to 3.1.2 and see if it will sync for me??

Jan 6, 2010 3:12 PM in response to daw2010

I went ahead and upgraded my iphone 3G, and I have had no problems syncing with my work Exchange account. Apparently my work just doesn't have the mobile encryption box checked. Lucky me!

JRB2

Level 1

4 points

Jan 7, 2010 7:54 AM in response to dgalvan123

Updated my iphone 3G to os 3.1.2 last night and no problem with Exchange 2007. Encryption must be turned off??

iPhone 3.1 Won't Sync w/ Exchange