Earlier this year, we identified a spam filtering problem on AT&T’s end causing mail to be rejected when sending to pacbell.net and prodigy.net e-mail addresses (and only to those addresses) from our NCCN.net mail server.
Extensive, multi-month efforts to resolve the problem via AT&T and third-party correspondence were unsuccessful, so we have deployed a new outbound e-mail server. After testing to make certain that it is not blocked at AT&T’s end (nor elsewhere), we have transitioned to sending all NCCN outbound e-mail through the new server. This has fixed the spam filtering issue, and also adds additional capacity and redundancy to our email services.
No changes should be necessary to your e-mail settings. If you are now having trouble sending outbound e-mail for your NCCN.net address, verify that your outbound mail server is smtp.nccn.net. You can also call us at (530) 478-9822, Ext. 1, to troubleshoot connection problems.