Open Relay Checker before Opening MTA
Alex Satrapa
grail at goldweb.com.au
Mon Feb 11 11:06:13 EST 2002
On Monday, February 11, 2002, at 10:22 , Matthew Hawkins wrote:
> Note that the internet standard says you MUST accept mail to the null
> sender. This is how bounces are sent. BUT note that the null sender is
> ALWAYS the *envelope* sender, and NEVER the *message header* sender (the
> message header sender is usually changed to "MAILER-DAEMON" or sometimes
> "postmaster")
I take it this means something like:
EHLO mail.example.com
RCPT-TO:
FROM: postmaster at mail.example.com
DATA
From: MAILER_DAEMON <postmaster at mail.example.com>
To: Postmaster <postmaster at mail.blugle.com>
Is that what you're talking about? (well... writing about I guess is
the technically correct term)
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