We are having an issue with several of our Apple devices at the moment when synchronising email from an Exchange 2003 server.
Everything has been working fine for several years and then suddenly on Tuesday afternoon at 14:30 6 of the 35 devices we have stopped working. All the others work. This seems to be account related as we can setup one of the accounts not working on a working handset and that handset stops working.
No new mail is collected and it says that it can't connect to the exchange server. If you delete the account and setup it up again on the phone all the ticks appear and it synchronises all email up to the time it failed and then falls over.
If we set the handset up to pick up only 1 day on the mail setup it works perfectly but we need to be able to setup for longer than 1 days worth of email.
The phones are on version 8.3.
All other users are setup to pick up a month of email and they work fine, these 6 handsets will not connect to the server to collect new email unless they are set to 1 day.
Has anyone ever experienced this? Nothing has changed on our server at all.