Russell Nelson <[EMAIL PROTECTED]> wrote:
> Charles Cazabon writes:
> > qmail never batches recipients to remote domains. One of the (several)
> > reasons for this is it would make VERP impossible.
>
> Not true. It simply means that the remote system would have to
> implement VERP when qmail-remote tells the smtpd that the envelope
> sender is list-@[]@host.example.com. Unfortunately, qmail-remote and
> VERP-compatible smtp servers do not cooperate in that manner.
> Actually there's no protocol reason why qmail-remote couldn't look for
> VERP in the EHLO tags, and send over all recipients for the current
> piece of email along with a VERP envelope sender. Of course, the
> current structure of qmail-send won't allow for that (even though
> qmail-remote will).
Good clarification. Would you settle for "Making VERP work with per-MX
batched recipients of a message would require extensive core changes to
qmail?"
I think that basically it boils down to this: if per-MX batching is critical
for a particular installation (bandwidth limitations or other issues), and
serialmail isn't sufficient, perhaps qmail isn't the right MTA for the job.
Of course, the number of installations where this would be true should be very
small.
Charles
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Charles Cazabon <[EMAIL PROTECTED]>
GPL'ed software available at: http://www.qcc.sk.ca/~charlesc/software/
Any opinions expressed are just that -- my opinions.
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