Date: Sat, 23 May 1998 12:32:04 +0930 From: Greg Lehey <grog@lemis.com> To: IBS / Andre Oppermann <andre@pipeline.ch>, freebsd-chat@FreeBSD.ORG Subject: Re: FreeBSD mailing lists with high latency Message-ID: <19980523123204.P339@freebie.lemis.com> In-Reply-To: <356613CE.14DAE847@pipeline.ch>; from IBS / Andre Oppermann on Sat, May 23, 1998 at 02:09:50AM %2B0200 References: <356613CE.14DAE847@pipeline.ch>
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On Sat, 23 May 1998 at 2:09:50 +0200, IBS / Andre Oppermann wrote: > I'm now since Aug '96 on various freebsd-* mailing list and I see the > latency between sending the mail and getting it back via the list > is longer every day. In case of my last posting it took 1 hr and 20 min > to get back. > > Is this related to the box the list is runnig on or is it simply > an overloaded sendmail. Then it might be worth a thought to switch > to qmail (it's really some hundred times faster than sendmail for > big lists). jmb will probably get back to you with more details, but briefly: hub sends the messages to a number of different relays rather than directly to each recipient. Some of these relays can be slow. To know where the delay is in your case, look at the headers. For example, yesterday I got a couple of duplicate messages sent to two different mailing lists. It appears that the relay host had gone down in between, and as a result the two copies appeared something like 10 hours apart. The headers showed that they left hub a few seconds apart. I don't know qmail, but I find it hard to believe that it is really "several hundred times" faster. It's possible that it looks that way due to different delivery strategies (try to deliver to all recipients at the same time), but I would have my doubts about how effective this is with 800 messages being relayed at the same time, as is currently the case at hub. Greg -- See complete headers for address and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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