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- Newsgroups: comp.mail.misc
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!cs.utexas.edu!torn!newshub.ccs.yorku.ca!yorku.ca!davecb
- From: davecb@nexus.yorku.ca (David Collier-Brown)
- Subject: Re: sendmail probs? advice please
- Message-ID: <davecb.724813041@yorku.ca>
- Sender: news@newshub.ccs.yorku.ca (USENET News System)
- Organization: York University
- References: <1992Dec17.150844.2059@ncsu.edu>
- Date: Sun, 20 Dec 1992 00:57:21 GMT
- Lines: 40
-
- arnold@stat.ncsu.edu (Tim Arnold) writes:
- |I'm worried about a high volume of mail requests--I am running
- |a Sun Sparc IPX, SunOS 4.1.3, OW 3, unix listserv, gopher and
- |squirrel mail server. I'm using the standard sendmail that came
- |on the machine.
-
- |My question is: what mta should I be using? If sendmail is a problem,
- |why is it a problem?
-
- The usual problems are twofold:
- a) sendfail(8), and
- b) performance
-
- (a) can be achieved by attempting to program in the senamail
- production language: rumor has it even the author can't remember
- how it really works (:-)).
-
- (b) is related to sendmail's desire to fork instead of queue. It
- is trivial to stop a small machine (like a NeXT cube, for example)
- by mailing to a large mailing-list. Sendmail's overload-avoidance
- is seriously flawed.
-
- On the other hand, I can say good things about zmailer:
- a) its very low load: I had a sun 3/60 acting as the mailhub
- of the second-largets Canadian university, and it only
- slowed down when someone uucp'd compresses news to it.
- I couldn't even tell if mail was running from xload, and
- faked up a queue-indicator to show me tat it was alive.
- b) it handles large mailing lsists well
- c) it's dead easy to install. Large, but dead easy.
- d) the routing doesn't se rewriting
- e) the routing code is written in a language designed for
- unix nerds to program in: it's deliberatly similar to sh.
-
- --dave (a happy customer) c-b
- --
- David Collier-Brown, | davecb@CCS.YorkU.CA | lethe!dave
- 72 Abitibi Ave., |
- Willowdale, Ontario, | York Postmaster and
- CANADA. 416-223-8968 | occasional sendfail(8) consultant.
-