At 4:15 PM -0700 9/6/99, Ronald F. Guilmette wrote:
>>Do you have a limit on the number of RCPTs in a single transaction?
>
> Doesn't everybody?
No.
>>(According to SMTP standards you should accept at least 100).
>
> I may be mistaken, but I believe that number is just a suggestion, and
> nor a requirement.
<http://www.imc.org/draft-ietf-drums-smtpupd> -- you are mistaken,
sir. According to the latest draft of the standard update for RFC821,
a limitation of less than 100 RCPT-TO is a violation of the standard.
You must accept at least 100. If you limit beyond that, the
restriction has to be orderly (silently deleting mail or recipients
that goes over the limit is explicitly denied -- at one point, AOL
did that. I don't know if they still do, but that's against the
standards.
See the section "recipients buffer" in the above URL, Ronald. (and
perhaps you ought to hang onto the URL, so you don't guess and give
out bad information next time)
> Ideally, if their limit is set to 10, then they should give 4xx SMTP response
> codes after the first 10 RCPT TOs (not 5xx responses) and then your MTA
> should be smart enough to send the message to just 10 Hotmail recipients
> at a time.
it should return a 452 "too many recipients". They also allow for a
5xx reply, using 500, 501 or 552.
(isn't looking it up fun?)
--
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