xxx@mycingular.blackberry.net “address rejected” explained

One of the execs at work suddenly stopped receiving emails on his blackberry today.  After some testing it was determined that his blackberry account was being returned with a 550 Address Rejected error.  Thanks to this blog entry I was able to get him going again.

Basically what has happened, if you don’t feel like following the above link, is that AT&T has stopped forwarding mail to mycingular.blackberry.net.  All you need to do to correct this is replace mycingular with att.  Like so, xxx@att.blackberry.net instead of xxx@mycingular.blackberry.net.   Ta-da, email is working again.  Thank you Ken Hanscom for blogging about this, as I’m not a blackberry user and never got the email explaining the cut off date for the mycingular server.