%telnet localhost 25 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. 220 smtp.some.net ESMTP Postfix helo smtp.some.net 250 smtp.some.net mail from: sender@some.net 250 Ok rcpt to: noexistent@some.net 450 <noexistent@some.net>: User unknown in local recipient table quit 221 Bye Connection closed by foreign host.
ちなみに unknown_local_recipient_reject_code = 250 と強引なワザを使おうとしたら 450 Service unavailable が帰ってきた。
Jan 11 17:04:10 hage postfix/smtpd[17926]: connect from sml-z1.infoseek.co.jp[211.13.222.42] Jan 11 17:04:10 hage postfix/smtpd[17926]: 5690230024: client=sml-z1.infoseek.co.jp[211.13.222.42] Jan 11 17:08:37 hage postfix/smtpd[17923]: timeout after DATA from sml-z1.infoseek.co.jp[211.13.222.42] Jan 11 17:08:37 hage postfix/smtpd[17923]: disconnect from sml-z1.infoseek.co.jp[211.13.222.42] だから、なんでインフォシークメール受け取れないんだ!
$ telnet smtp.nifty.com 25 Trying 202.248.37.200... Connected to smtp.nifty.com. Escape character is '^]'. 220 mail505.nifty.com ESMTP Nifty Mail Server MAIL FROM:<myname@家鯖> 250 2.1.0 <myname@家鯖>... Sender ok RCPT TO:<myname@users.sourceforge.net> 250 2.1.5 <myname@users.sourceforge.net>... Recipient ok DATA 354 Enter mail, end with "." on a line by itself From: myname@localhost