Date: Mon, 16 Sep 1996 18:09:34 -0500 (CDT) From: Paul DuBois <dubois@primate.wisc.edu> To: brandon@glacier.cold.org (Brandon Gillespie) Cc: freebsd-questions@FreeBSD.org Subject: Re: sendmail, majordomo and list servers, optimizing? Message-ID: <199609162309.SAA11346@night.primate.wisc.edu> In-Reply-To: <Pine.BSF.3.91.960916131126.7645B-100000@glacier.cold.org> from "Brandon Gillespie" at Sep 16, 96 01:28:32 pm
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>Out of curiosity, does sendmail do any sort of delivery optimizing. For >instance, if you use :include: on a list of addresses does it sort that >list, attempting to get all addresses in a certain domain in order, so it >can pass all of them off to a local system at once, or at the very least >so it can deliver them over an already established route on or about the >same time. > >On a similar note, currently majordomo takes a secondary role in delivery, >acting more as a filter than anything. I was thinking on a heavilly hit >list server (i.e. more than ~100 addresses per list and more than 1 post >every few seconds) it may be smarter to have a list server automatically >group the messages, holding off delivery a few seconds (depending upon the >load and ratio of addresses/hits) and hooking back to call sendmail. > >Is there any software that does this? Some of the lists I manage have >upwards of 4,000 email addresses (fortunately they are not heavilly hit). >I've hacked a program which sorts them by domain, but I think other >optimizations could be made. Is there a newer version of Majordomo which >does this? majordomo doesn't do any mail delivery. But for sort-by-domain stuff such as you mention above, you want Keith Moore's bulk_mailer. >And lastly, is there an option available to 'multi-plex' sendmail / >majordomo? In order to get it to deliver more than one message at a time >(such as delivering the first 10-n messages at a time, handling multiple >sockets and forking appropriately). This would slam a machine, but if its >a dedicated machine and you capped the max it would work on at a time I >dont see a problem with that--if the end result was faster delivery. bulk_mailer forks off multiple sendmails.
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