In message <20160229171935.gh12...@mournblade.imrryr.org> Viktor Dukhovni writes: > On Mon, Feb 29, 2016 at 11:38:26AM -0500, Ruben Safir wrote: > > > > To have mailman reinject on an extra port on localhost is how it > > > should be done. > > > > Thanks! > > Note that much of the delay was likely due to mailman hitting tarpit > controls after 10 invalid recipients in a single submission. > > http://www.postfix.org/postconf.5.html#smtpd_error_sleep_time > > Although slow DNS lookups could well have contributed. > > For submission of list messages to a large number of recipients, > I would generally use sendmail(1) rather than SMTP. Don't know > whether mailman supports that. > > -- > Viktor.
IETF uses mailman and supports a large number of working group mailing lists with up to thousands of subscribers per list, with subscribers from all over the world, so clearly mailman is usable in for a large number of large mailing lists. I think most IETF mailing lists switched from majordomo some 15 years ago when mailman was fairly new. Maybe this isn't a useful response. Just pointing to an existance proof that the mailman architecture is not fundamentally broken. btw- I can't tell from headers whether they use sendmail.org sendmail or postfix or something else, but amavisd-new is mentioned in the headers. amsl.com runs most of the mailing lists. Curtis
