ismgr@??? said:
> Does "during the read-in phase" mean before the mail has been accepted
> from the sending host? Do you mean an arbitrary program could check
> for "friend@???", and given subjects, and *then* decide to give
> the sender a 550?
Potentially.
However you would have to read the message before you could make a
decision (this is a content handling hook), so your error response
would occur at the end of DATA. Some MTAs do not handle negative
responses at this point correctly. Maybe it would be possible to hook
the existing code that rejects this stuff on subsequent sends correctly.
Nigel.
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[ Nigel Metheringham Nigel.Metheringham@??? ]
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