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Re: greylisting done at end of headers, or end of daya (QUIT) ?

2007-01-30 13:41:30

On Tue, 30 Jan 2007, John C Klensin wrote:

You don't want to do it on QUIT -- too many systems, in
practice, send QUIT and view _any_ response as "ok".  However,
there is already provision for returning error replies at the
end of the DATA command (i.e., after the CRLF.CRLF).  Such
replies are actually necessary with errors like "SIZE limits
exceeded" (the reply code isn't called that, of course) and to
deal with other problems and MTAs are expected to cope with them.

How does server know if client is or is not going to ignore reply
after DATA?

William Leibzon
Elan Networks