******** SERVER ******** Listening on port 1224 ... Connection request from [127.0.0.1] 220 ESMTP EHLO myhost.test.ex 250-OK 250 HELP MAIL FROM:<CALLER@myhost.test.ex> 250 Sender OK RCPT TO:<userx@domain.com> 452 Temporary error QUIT 250 OK End of script Listening on port 1224 ... Connection request from [127.0.0.1] 220 ESMTP EHLO myhost.test.ex 250-OK 250 HELP MAIL FROM:<CALLER@myhost.test.ex> 250 Sender OK RCPT TO:<userx@domain.com> 452 Temporary error QUIT 250 OK End of script