Daily Archives: June 13, 2013

Exchange 2013: 421 4.3.2 Service not available

There appears to be a bug in 2013 (inc. CU1) where the transport stops receiving connections with this error. In my case I have the FE role on the mailbox server, and also have a custom (hub transport) receive connector for … Continue reading

Posted in Aide memoire, Email, Exchange 2013 | 4 Comments