A number of our customers who maintain their own mailservers have called reporting issues with the delivery of their email in the last 24 hours. If you are experiencing something similar, please ensure that you are not using the ORDB anti-spam list.
The ORDB anti-spam list was shut down in December 2006, and in an effort to fully deactivate the list, ORDB is now sending out false positives. This means that if your mailserver relies on the ORDB anti-spam list, your mailserver is more than likely rejecting ALL EMAIL that is being relayed to it.
Please ensure you remove your mailserver’s dependence on ORDB, as this will correct this specific issue.
Discussion about this recent development with ORDB can be found at the following URL upon Slashdot: