Hi everyone!
I have a huge exchange 2013 environment with about 10k mailboxes. The CAS feature is segregated. Some of the servers (with the same hardware configuration) have started to keep messages in submission queue and it just let it go after an IISRESET. I noticed before the procedure that the CPU was in the top of use mainly by the IIS process.
I don't have anti-virus installed on it. But we have a lot of transport rules. About 200.
I didn't find out nothing special on EV. Just some times back-pressure. But why after the IISRESET the queue starts flowing again?
All releases are CU7.
Regards
Daniel S Orlando MCSE - Messaging
