We monitor our SBG 9.0.2 boxes with SNMP. We are seeing odd behavior in the deferred queues counts. The SNMP data shows a continously increasing Deferred count reaching into the 2-3 thousands, Delivery queue remains normal.
GUI Status / Hosts / Message Queues # are normal as they only report delivery #, not deferred #. Checking the Message Queue does not show large # of messages.
The CLI command monitor mta_del shows the same high counts. An mta-control all stop & mta-control all start resets the deferred count, but it starts increasing again.
Not all of our scanners are doing this.
We have an open case, but I'm asking the community if they are experiencing this to see if its widespread. You'd not notice this if you wern't monitoring with SNMP or using CLI tools to monitor your systems.