We have received some reports of certain users emails bouncing on receipt. We are currently looking into the problem and will update the advisory shortly.

Update: 1:19 PM EST: Problem solved, 100% of the accounts are now online.

Update: 1:53 PM EST: ExchangeDefender has been reloaded and refreshed to assure absolutely everything is working perfectly. We have taken off administrative console access offline for the moment to determine the cause of network configuration failure. As mentioned in the 1:19 PM update, everything should be working perfectly fine and there should be no bounces.

Update: 2:16 PM EST: Notified ExchangeDefender administrators, updated trouble tickets and the recovery effort to deliver 800+/20+ inbound/outbound messages continues. This was a minor (albeit catastrophic) error in the ExchangeDefender network configuration that affected a small portion of our customer base but due to the distributed nature of the system it may have affected just about everyone. As a precaution, we have temporarily taken administrative interfaces offline to determine how this happened in the first place. Again, network, performance and system are at 100% at the moment with no known issues.

Update: 2:28 PM EST: Cause of network failure identified, fixed. Moving to the testing phase, control panels are still offline. 1/4 of the bounced messages have been recovered and delivered to the end users.

Update: 3:19 PM EST: Everything is still working perfectly fine. Our team is decrypting messages from the standby spool and dropping the messages by hand into the delivery queue. All “bounced” messages will still be delivered. Thanks to the technology behind LiveArchive, we are able to cache delivery so in case of bounces, like today, we can still manually drop the message into your mail server.

Update: 4:46 PM EST: Everything is back to normal, all external bounced mail has been delivered, 100% service restored and administrative control panels are restored as well.