+++++++++++++++++++++++++++
  R:x@y:<CALLER@myhost.test.ex> -44 13121 SMTP error from remote mail server after RCPT TO:<x@y>: host 127.0.0.1 [127.0.0.1]: 451 Temporary error
first failed = time last try = time2 next try = time2 + 1
+++++++++++++++++++++++++++

******** SERVER ********
Listening on port 1224 ... 
Connection request from [127.0.0.1]
220 Server ready
EHLO myhost.test.ex
250 OK
MAIL FROM:<CALLER@myhost.test.ex>
250 OK
RCPT TO:<x@y>
451 Temporary error
QUIT
250 OK
End of script
Listening on port 1224 ... 
Connection request from [127.0.0.1]
220 Server ready
EHLO myhost.test.ex
250 OK
MAIL FROM:<CALLER@myhost.test.ex>
250 OK
RCPT TO:<x@y>
250 OK
DATA
354 Go Ahead
Received: from CALLER by myhost.test.ex with local (Exim x.yz)
	(envelope-from <CALLER@myhost.test.ex>)
	id 10HmaX-0005vi-00
	for x@y; Tue, 2 Mar 1999 09:44:33 +0000
Date: Tue, 2 Mar 1999 09:44:33 +0000
Message-Id: <E10HmaX-0005vi-00@myhost.test.ex>
From: CALLER_NAME <CALLER@myhost.test.ex>

.
250 OK
QUIT
250 OK
End of script