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From: jordan@UCBARPA.BERKELEY.EDU.UUCP
Newsgroups: mod.protocols.tcp-ip
Subject: Re:  duplicate message in SMTP ("sndmsg balks, try again later")
Message-ID: <8702241936.AA19824@ucbarpa.Berkeley.EDU>
Date: Tue, 24-Feb-87 14:36:30 EST
Article-I.D.: ucbarpa.8702241936.AA19824
Posted: Tue Feb 24 14:36:30 1987
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mark crispin,

i have seen this behaviour as well, but found it not on the UNIX side
(alas, sendmail has no routine sndmsg() ...), but on the side of a VMS
machine running some sort of SMTP (software tools?) that manages to
exceed sendmail's fondness for mangling headers ... and i agree that
once the message has been received, a 2xx acknowledgement is in order;
not quite sure why sendall() in sendmail comes before the 2xx ack.

/jordan