[Mimedefang] Streams and MaxRecipientsPerMessage

David F. Skoll dfs at roaringpenguin.com
Mon Apr 18 14:53:08 EDT 2005


WBrown at e1b.org wrote:
> If I want to be able to reject instead of bounce all messages when doing 
> stream by recipient, can I set MaxRecipientsPerMessage to 1 in sendmail?

That could be considered a violation of RFC 2821:

   recipients buffer
      The minimum total number of recipients that must be buffered is
      100 recipients.  Rejection of messages (for excessive recipients)
      with fewer than 100 RCPT commands is a violation of this
      specification.

Now, it's not clear to me that "rejecting a RCPT command with a 4xx code"
is a violation, because it says "Rejection of messages... is a violation",
but you're definitely skating on thin ice if you set MaxRecipientsPerMessage
to less than 100.

Regards,

David.



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