Debugging: Incremental Mailbox Sync Move Requests Cause ‘StopAll’ to be called on the Assistants Infrastructure Which Causes CalendarNotificationAssistant to Stop Processing Text Message (SMS) Notifications

Not too long ago, I debugged an issue with the Calendar Notification Assistant (CNA), wherein the Assistant would stop processing text message (SMS) notifications for events. The affected end-users noted that if they enabled text message (SMS) notifications in Outlook Web Access (OWA), the notifications would work for around 24 hours and then they would…

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Exchange 2010: AD Recipient Cache and Locking Threads in EdgeTransport – Or How We Figured Out Something Wasn't Right With Mail Stuck in Submission Queue

A while ago we had an issue, wherein SCOM fired for message queue length for messages in Submission. When we went to take a look, the messages were stuck in Submission and weren't really going anywhere. Took a dump of EdgeTransport, paused Transport, and the queues eventually flushed. Opened Windbg against the dump and here's what…

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