We've just released 9.407 to the Up2Date servers. This is a full GA release, meaning that all firewall running will be offered the automatic update.
There is a known bug in v9.407 wherein the SMTP daemon will scan an email and check the recipients in To, CC and BCC but if it finds more than one recipient with the same email it is removing all extra copies of that recipient but does not reduce the recipient count. Then the next part of the engine scans the email and sees, for instance, 5 recipients when there is a marker for there to be 6 and classes the email as corrupt.
since Firmware update to 9.407 AP30 rev2 can not be provisioned anymore... with another appliance wit 9.405 on it ... everthing is fine ... BUG ?