Dear Sir:
I'm the one that causes 'a lot' discussion about the topic 'qmail speed'.
I've read through the whole mail-threads, and thanks for anyone that
give even a word here.
I HAVE to say that I like qmail, and I don't hate sendmail too -
that's not my point here. If anything other than these can solve my
problem, I'll choose it.
Someone said that qmail is weaker if I send many 'RCPT TO:' in one SMTP
transactions than sendmail. Well, I don't know the inside story, but I
do worry about that statement.
Usually the newsletter (or big mailing list) admin. will use 'bulk' mail
to distribute their message, i.e. one message with 'many' recipients.
And they will sort the recipient lists before sending to MTA too.
I think this flow is ok, but I don't know if this kind of behavior (one
message w/ many recipients, and sorted lists) is suitable for qmail?
Will qmail spwans a lot of processes for 'one' such SMTP transaction?
I choose 100 as the # of 'RCPT TO:' in one outgoing SMTP bulk, so there
will be more than 4000 such bulks sending to qmail-smtpd for a 400K
recipient list. What would happen there? I don't know now, but I'll
try recently.
If someone can comment on this topic, I'll be very appriciated, if
this place is not suitable, please just reply to me.
Thanks again and hope qmail will be better and better. Actually I
made another free-email (POP3) system using qmail+mysql, it's online
and I'll know what qmail can when I have, say, 500K accounts on it.
Regards.
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