Guy Hulbert wrote:
Bernstein claims that this is a requirement of RFC 821.
Now, i'm not sure what Bernstein wrote, but i doubt he wrote that
a MTA is not allowed to reject a mail at SMTP level.
Sorry, I'm probably SMTP-confused ... let me look up what he wrote ...
http://cr.yp.to/smtp/client.html
[...]
The client then sends a DATA request, and waits for the
response:
DATA
Back up. Before this, the client sends:
RCPT TO: [EMAIL PROTECTED]
If you can't deliver to that address, you should reject at
that point and you won't get to the DATA step.
One of the domains I handle has been getting about 50,000 messages
a day to invalid addresses in what appears to be a distributed
dictionary attack for the last several years. What qmail did with
them was no fun at all.
--
Les Mikesell
[EMAIL PROTECTED]
