Mailbox Move ‘Stuck’ Queued
KB ID 0001094 Problem When doing a migration I usually create a test account and move that to the new server. Then I can mail flow both from old to new server and to/from external addresses from both old and new servers. So when the mailbox just sat ‘Queued’ for a while I was starting to get concerned. Even applying the Exchange ‘cup of coffee’ rule didn’t make a difference. Solution Nice simple one to...
Exchange Error 451 4.4.0 primary target IP address responded with…
KB ID 0000252 Problem You see this error message on your Exchange outbound queues. 451 4.4.0 primary target IP address responded with “421.4.4.2 unable to connect.”attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all alternate hosts. Solution Essentially this is a communication error, you can’t connect to the other end on TCP port 25 (SMTP)....