From: (no name) (no email)
Date: Wed Feb 25 2004 - 08:33:14 EST
On Tue, 24 Feb 2004, Covington, Chris wrote:
> >not hang up? Bottom line: an MTA must not send more than 100 recipients
>
> >per transaction unless the destination host is known in advance to
> accept
> >larger envelopes. Yes, Postfix accepts up to 1000 by default, but
> Exchange
> > must not send not send than 100 by default.
>
> Why not? Which RFC are you referring to?
RFC 821 says that an MTA MUST support at least 100 recipients, which means
that some MTAs will not support more than 100. This means that all MTAs
need to send less than 100 when sending to a destination not a-priori
known to support more.
> If it is known that the the downstream MTA accepts 1000, what would be
> the benefit of adjusting Exchange to send 100?
>
If your Exchange server only talks to your Postfix server, it is OK to
leave the limit at 1000, but the *default* limit for Exchange (as shipped
by Microsoft) should be 100.
-- Viktor.
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