Hi MSX2000, SP2 We have one fornt-ened server and two back-end servers the mailboxes in the bak-end servers are not receiving email messages we have noticed that the front-end server build the queue up to the respective bak-end server but the message never arrives to the back-end but a NDR is received by the internet sender. If we check the details for those messages builiding up in the front-end the details say : mailloop misconfigured. Are we loosing any "a must" configuration to properly route messages front Front-end to back-end? note: messages sent from back-end mailboxes to internet are ok. Rgds, -er
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