Re: Processing after the end of DATA

[John C Klensin]

--On Tuesday, August 10, 2010 09:48 -0700 Dave CROCKER
<d...@dcrocker.net> wrote:

> As I recall, delivermail didn't do queuing.  So, yes, the
> delivery attempt was immediate.
> 
> Sendmail behaved the same way, for a first attempt, and did
> queuing only if that   attempt failed.
> 
> MMDF always did queuing first, spawning a delivery attempt
> afterward. (Submission and delivery were independent Unix
> processes.)

And IIR, several of the small computer-based things, including
PC/TCP, would make a direct attempt to deliver and send mail to
what we would now call a submission server only if that single
direct delivery attempt failed.

   john