******** SERVER ******** Listening on port 1224 ... Connection request from [127.0.0.1] 220 ESMTP EHLO the.local.host.name 250-OK 250 HELP MAIL FROM: 250 OK RCPT TO: 250 OK DATA 354 More... Received: from CALLER by the.local.host.name with local (Exim x.yz) (envelope-from ) id 10HmaY-0005vi-00 for userx@domain1; Tue, 2 Mar 1999 09:44:33 +0000 Message-Id: From: CALLER_NAME Date: Tue, 2 Mar 1999 09:44:33 +0000 A deliverable message . 250 OK QUIT 220 OK End of script Listening on port 1224 ... Connection request from [127.0.0.1] 220 ESMTP EHLO the.local.host.name 250-OK 250 HELP MAIL FROM: 250 OK RCPT TO: 250 OK DATA 354 More... Received: from CALLER by the.local.host.name with local (Exim x.yz) (envelope-from ) id 10HmaX-0005vi-00 for userx@domain2; Tue, 2 Mar 1999 09:44:33 +0000 Message-Id: From: CALLER_NAME Date: Tue, 2 Mar 1999 09:44:33 +0000 A deliverable message which will hit a coding error in the config . 250 OK QUIT 220 OK End of script Listening on port 1224 ... Connection request from [127.0.0.1] 220 ESMTP EHLO the.local.host.name *sleep 4 End of script Listening on port 1224 ... Connection request from [127.0.0.1] 220 ESMTP EHLO the.local.host.name 250-OK 250 HELP MAIL FROM: 250 OK RCPT TO: 550 GO AWAY QUIT 220 OK End of script