Question : Outlook Mobile Access Error 1305 - A System error has occurred while processing your request. Please try again. If the problem persists, contact your administrator.

We're running Exchange Server 2003 Standard on-site with Outlook Mobile Access. A couple of weeks ago one of our users had an issue with his phone and ActiveSync would kick an error when he tried to sync. Another IT guy here followed some guide to delete and re-create the Microsoft-Server-ActiveSync folder, and sine then we have NO OMA service for anyone. I've followed every MS KB article I can find, and several posts on Experts Exchange and other help sites to no avail. NOTHING seems to be working. I'm afraid my next step is re-install Exchange but as you can imagine I'd really like to avoid that. Any help would be greatly appreciated. If you have any questions or need for clarity please let me know!

Answer : Outlook Mobile Access Error 1305 - A System error has occurred while processing your request. Please try again. If the problem persists, contact your administrator.

Here are several possible solutions to that event id error. Is 1503 the only event id, or are there others?

http://www.eventid.net/display.asp?eventid=1503&eventno=3582&source=MSExchangeOMA&phase=1