Subject: Re: daily (& security) mail not delivered
To: None <Richard.Earnshaw@arm.com>
From: Andrew Brown <atatat@atatdot.net>
List: current-users
Date: 06/30/2003 11:34:36
>> >This is all quite disastrous on low-memory machines, I now need sendmail
>> >running on my machine just to be able to redirect local root mail to
>> >myself (the main mail servers send root mail to the sysadmins), and that
>> >daemon is wasting nearly a Meg of RAM and a process slot (according to
>> >'top'). Postfix isn't any better in this regard. It has something like
>> >three daemons running in the basic dumb-client configuration.
>>
>> well, yes, but then you don't suffer as much in startup costs whenever
>> sendmail is invoked to collect local mail, since most of the memory
>> will end up shared. but that's a silly argument.
>>
>> your point about postfix is true, but conversely, under high load,
>> postfix has a better memory footprint than sendmail. sendmail starts
>> lower tehn postfix, but grows more quickly with load. postfix starts
>> higher, but its growth curve is much shallower under load. for
>> whatever that's worth.
>
>Sadly it's worth nothing in this case. The machine in question is never
>used to read mail (it all goes to the hub which then spits it out to
>wherever is appropriate), and only generates about 4 messages a day (most
>of those are nightly log runs). It really isn't cost-effective to be
>running a sendmail daemon for that; yet now there is no choice in the
>matter.
oh, no, not at all. if you really have a mail-hub that handles all
your mail, then just make your own submit.cf that points to the
mail-hub instead of to localhost. boom. you're done. simpler than
ever.
--
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