2SINL: Да, на сайте Alt-N расписано как это сделать (к сожалению не помнюгде именно). Вот кусок рабочего mdaemon.ini с измененными сообщениями (от копи-пасти и будет счастье)
[custom-smtp]
7000=" ESMTP service ready "
7002=" Hello, pleased to meet you
"
7004=" Sender ok"
7062=" Sender ok (alias)"
7006=" Recipient ok"
7008=" Recipient ok (alias)"
7010=" Enter mail, end with <CRLF>.<CRLF>"
7011=" See ya in cyberspace"
7012=" What? I dont understand that."
7013=" Ok, message saved"
7014=" Server is not a valid maildrop. Please check the address and try again."
7015=" Sorry, try later. Cant create temporary mail file.
"
7016=" RSET? Well, OK."
7017=" Why is there an NOOP instruction?"
7018=" Yeah, I know that one. He (or she) is %s <%s>."
7019=" Never heard of ‘em."
7020=" What? Theres more than one possible match to that query on this server."
7021=" Yeah, theres a list here by that name. Mail to <%s>."
7022=" What? Theres no mailing list here by that name."
7023=" What? Theres more than one possible match to that query on this server."
7024=" Hey! I dont let remote systems TURN on me."
7025=" Help system currently inactive."
7033=" Hello, did you know your name is really?"
7034=" Unexpected command or sequence of commands."
7037=" Sorry, SMTP server too busy right now (%d). Try again later.
"
7038=" SMTP session successful, %ld bytes transferred!
"
7039=" SMTP session abnormally terminated, %ld bytes transferred!
"
7041=" Sending <%s> to [%s]"
7042=" Connection timed out!
"
7043=" Spooling mail to default gateway"
7044=" This server does not accept routed mail"
7046=" Node <%s> does not store mail here"
7047=" Your IP address <%s> does not have access to node <%s>"
7048=" No messages waiting for node <%s>"
7050=" <%d> pending messages for node <%s> started"
7051=" Unable to queue message for node <%s>: Internal processing error"
7052=" This server configured to NOT honor EHLO at present."
7053=" Sorry, <%s> is not allowed access from your location"
7055=" <%s>, Sender unknown"
[custom-pop]
7200="+OK %s POP service ready "
7201="+OK %s... Recipient ok"
7235="-ERR Access denied. Contact postmaster@%s for more information."
7234="-ERR sorry, POP server too busy right now. Try again later."
7202="-ERR sorry, theres no mailbox for %s here"
7203="-ERR that command is valid only in the AUTHORIZATION state!"
7204="-ERR that command is valid only in the TRANSACTION state!"
7205="-ERR that command is valid only in the UPDATE state!"
7233="-ERR maildrop already locked"
7206="+OK %s... see ya in cyberspace"
7207="-ERR access denied"
7208="+OK %ss mailbox has %d total messages (%ld octets)."
7210="+OK %d messages (%ld octets)"
7219="-ERR no such message"
7220="-ERR no such message, only messages 1 thru %d are present in your inbox"
7222="+OK %s %s POP Server signing off (mailbox empty)"
7223="+OK %s %s POP Server signing off (%d messages left)"
7214="-ERR unknown POP command!"
7213="+OK message %d deleted"
7224="-ERR message %d already marked for deletion"
7216="Sending TOP of message %d (unbuffered operation…)"
7241="Sending <%s> to [%s]"
7242="Connection timed out!"
7243="Transmission Complete <%s>"
7247="Message %d (%ld bytes) exceeds max message size limit of %ld bytes"
7248="Collecting Message %d (%ld bytes) would exceed accounts max disk space limit of %ld bytes"
7249="Collecting Message %d would exceed accounts max stored message limit of %ld"
7237="POP session complete, %ld bytes transferred!"
7238="POP session timed out, %ld bytes transferred!"