Hi all,
Just for fun, I ran abuse.net's test on one of my servers and saw something
strange:
Putting double quotes around the RCPT address, RCPT TO:<"[EMAIL PROTECTED]">,
made the server _NOT_ send a 571 we do not relay error. Why is that? Below is the
website log showing the test, and then the mail server (SIMS ppc 1.8b8) log.
Confused a Friday afternoon...
Joe
ps relay for clients only is of course checked.
--test page from http://www.abuse.net/cgi-bin/relaytest --
Relay test 7
>>> RSET
<<< 250 SMTP state reset
>>> MAIL FROM:<spamtest@[66.88.123.234]>
<<< 250 <spamtest@[66.88.123.234]> sender accepted
>>> RCPT TO:<[EMAIL PROTECTED]>
<<< 571 <[EMAIL PROTECTED]> we do not relay.
Relay test 8
>>> RSET
<<< 250 SMTP state reset
>>> MAIL FROM:<spamtest@[66.88.123.234]>
<<< 250 <spamtest@[66.88.123.234]> sender accepted
>>> RCPT TO:<"[EMAIL PROTECTED]">
<<< 250 <"[EMAIL PROTECTED]"> recipient accepted
--mailserver log--
18:08:36 4 SMTP-117(www.abuse.net) Input Line: RSET\r
18:08:36 4 SMTP-117(www.abuse.net) Sending 250 SMTP state reset\r\n
18:08:36 4 SMTP-117(www.abuse.net) Input Line: MAIL FROM:<spamtest@[66.88.123.234]>\r
18:08:36 4 SMTP-117(www.abuse.net) Sending 250 <spamtest@[66.88.123.234]> sender
accepted\r\n
18:08:36 4 SMTP-117(www.abuse.net) Input Line: RCPT TO:<[EMAIL PROTECTED]>\r
18:08:36 4 SMTP-117(www.abuse.net) Looking for invincible.cnchost.com
18:08:36 1 SMTP-117(www.abuse.net) SPAM? Recipient '<[EMAIL PROTECTED]>'
rejected: relaying to [207.155.248.15] is not allowed
18:08:36 4 SMTP-117(www.abuse.net) Sending 571 <[EMAIL PROTECTED]> we do not
relay.\r\n
18:08:37 4 SMTP-117(www.abuse.net) Input Line: RSET\r
18:08:37 4 SMTP-117(www.abuse.net) Sending 250 SMTP state reset\r\n
18:08:37 4 SMTP-117(www.abuse.net) Input Line: MAIL FROM:<spamtest@[66.88.123.234]>\r
18:08:37 4 SMTP-117(www.abuse.net) Sending 250 <spamtest@[66.88.123.234]> sender
accepted\r\n
18:08:37 4 SMTP-117(www.abuse.net) Input Line: RCPT TO:<"[EMAIL PROTECTED]">\r
18:08:37 4 SMTP-117(www.abuse.net) Sending 250 <"[EMAIL PROTECTED]"> recipient
accepted\r\n
18:08:38 4 SMTP-117(www.abuse.net) Input Stream ended
18
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