I was lazy and this morning I was called on it. When I checked my inbox this morning I noticed several delivery failure messages from mycingular.blackberry.net email address in which they were being rejected with the following message:
This is an automatically generated Delivery Status Notification Delivery
to the following recipient failed permanently:
Technical details of permanent failure:
PERM_FAILURE: Gmail tried to deliver your message, but it was rejected by the recipient domain.
The error that the other server returned was: 550 550 #5.1.0 Address rejected.. We recommend contacting the other email provider for further information about the cause of this error.
Thanks for your continued support. (state 14)
The root cause? AT&T / Cingular had announced last September that forwarding from mycingular.blackberry.net accounts to the new att.blackberry.net accounts would stop on March 1st, 2008. I pretty much ignored the original email that I received from AT&T and Cingular, knowing I had plenty of time to make the switch. I did not setup a reminder and this morning the email delivery stopped working.
Apparently it took AT&T little longer to do it than they initially planned -- April 25th, 2008 was the last day that the forwarding would continue for my particular account.
However, this was a really easy fix. All I had to do was log into my Gmail account, change the forwarding address from email@example.com to firstname.lastname@example.org and my mail forwarding was immediately restored.
Hopefully you did not get caught by the same issue I did. If you did, at least you know there is an easy fix!
A sad day indeed, no more orange Cingular splat and no more mycingular.blackberry.net email addresses.