I recently changed servers and have installed LMP, the initial test was successful (minus the bounce cgi configuration) but incredibly slow, took overnight to process a list of 1500. I followed DW's recommendations and added the concurrency updates and applied his qmail patch. Since the patch has been applied no mail will go through, it just sits in the remote queue.
When I tail -f the maillog it returns for each email:
Jul 22 09:09:03 myhostname qmail: 1216735743.590034 starting delivery 3: msg 3819542 to remote me@mydomain.com
Jul 22 09:09:03 myhostname qmail: 1216735743.590048 status: local 0/100 remote 1/400
Jul 22 09:09:03 myhostname qmail: 1216735743.597923 delivery 3: deferral: Sorry,_message_has_wrong_owner._(#4.3.5)/
Jul 22 09:09:03 myhostname qmail: 1216735743.597964 status: local 0/100 remote 0/400
Any thoughts?