MAIL FROM:<CALLER@test.ex>
250 Sender OK
RCPT TO:<userz@domain1>
-450 Temporary error
+450 Temporary error 1
QUIT
250 OK
End of script
MAIL FROM:<CALLER@test.ex>
250 Sender OK
RCPT TO:<userx@domain1>
-450 Temporary error
+450 Temporary error 2
RCPT TO:<usery@domain1>
250 OK
DATA
MAIL FROM:<CALLER@test.ex>
250 Sender OK
RCPT TO:<usery@domain1>
-450 Temporary error
+450 Temporary error 3
QUIT
250 OK
End of script