>>>>> "JW(" == Juntung Wu (JT) <email@example.com> writes:
JW> Jason Tibbitts III advised that I can significantly reduce the amount
JW> of traffic by using Majordomo 1.94.4 + TLB (or bulk_mailer) + Sendmail
I did? All I said was that Sendmail supports what you want (or what I
thought you wanted), and that you might want to look at something like TLB
if you have the technical ability to make it work. (The reason I did this
is that is because TLB can be configured to have a remote site do delivery
for you.) I mentioned no Sendmail version numbers.
JW> The theory goes that I can batch several messages together, and send
JW> one copy of the message with n e-mail addresses together as one
JW> "envelope" via my MTA.
I don't believe that SMTP allows you to send more than one message per
envelope (check RFC821 and all of the amendments to be sure), but some MTAs
(most notably Exim) will do everything they can to send multiple messages
per _connection_. Sendmail does something like this with connection
caching, but Exim goes further.
JW> I heard from Jason Tibbitts III that Sendmail 8.8.8 does it by default
JW> (and limits the number of addresses per envelope to 20 (i.e., n=20))
JW> That means that I can cut my bandwidth use down by 95%.
Please don't misquote me. I possibly misunderstood your question to me;
all I was trying to say is that Sendmail will send many addresses per
envelope, not many messages per envelope. I said that I _thought_ the
default configuration set the limit at 20 but that you should actually
check some documentation.
JW> Will bulk_mailer work just as well as TLB in this case?
Given that neither of them will send more than one message per envelope,
they'll both work just as well in not doing what you want.
If you are really that interested in making this work, why don't you first
sit down and read the relevant parts of the relevant standards documents so
that you understand the mechanics of what you're asking? It will save you
time in the long run. Pay a visit to
<URL:http://www.internic.net/ds/dspg1intdoc.html>. Look at RFC821.