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#! rnews 2053 bsd Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.Hawaii.Edu!ames!enews.sgi.com!www.nntp.primenet.com!nntp.primenet.com!news.texas.net!news.kei.com!news.thenet.net!uunet!in2.uu.net!128.248.178.247!koobera.math.uic.edu!djb From: djb@koobera.math.uic.edu (D. J. Bernstein) Message-ID: <1996Dec2406.42.26.28620@koobera.math.uic.edu> Date: 24 Dec 1996 06:42:26 GMT Newsgroups: comp.mail.sendmail,comp.mail.smail,comp.unix.bsd.freebsd.misc Subject: Re: Sendmail vs. Smail... References: <57tf61$gq7@raven.eva.net> <slrn5brnga.4fs.jon@black.oaktree.co.uk> <1996Dec2302.43.17.4992@koobera.math.uic.edu> <59m8q0$meq@Mercury.mcs.net> Organization: IR Lines: 38 Xref: euryale.cc.adfa.oz.au comp.mail.sendmail:35536 comp.mail.smail:2770 comp.unix.bsd.freebsd.misc:33065 In article <59m8q0$meq@Mercury.mcs.net>, Leslie Mikesell <les@MCS.COM> wrote: > OK, is the thing Microsoft sold as a gateway between MSmail and SMTP > real also? No. :-) A machine like that has to be hidden behind a serious MTA. > I suggest > that you locate one of these puppies and see what happens if you hit > it with 10 messages in parallel Gee. What do you think happens when (1) sendmail builds up a queue of messages from the MSMail gateway, (2) sendmail does a queue run, and (3) two of the messages bounce? Answer: sendmail does two parallel connections. The MSMail gateway dies. This is much less likely to happen with qmail. Messages are scheduled independently. Retries don't cluster. > to round out your experience a bit. Mm-hm. In the real world, sendmail beats the crap out of any exposed MSMail gateway. That's why people don't expose their MSMail gateways. > Since you used an unusual disfunctional example of a mailer that > could accept 10 messages in parallel but not with multple RCPTs, You're missing the point. The problem was the quality of the network connection. (The SMTP server was a recent version of sendmail.) ---Dan Put an end to unauthorized mail relaying. http://pobox.com/~djb/qmail.html