Here are the stats from this morning:

  * email arrival rate: 1,000/minute
  * outlook.com email sent: 7,113
  * MaxConnections: 17

MaxConnections increases with the email arrival rate.  It is consistent day
to day at a given email arrival rate.  We are currently running four
outlook transports on different ip addresses with connection caching
disabled.  Each of these transports are running two processes.

Three possibilities come to mind:

  (1) continue to ignore the MaxConnection Messages/Deferrals
  (2) reduce the number of processes per transport to 1
  (3) reduce the number of outlook transports to 2

I do not believe (3) will help as I believe outlook servers are watching
connections on a per ip basis from looking at the maillogs.  I'm leaning
towards (2) but I am not sure of the ramifications of running one process
per transport.  Perhaps there are other solutions I have not considered.

Thanks, Greg
www.RayStedman.org

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