Date: Sat, 31 Jul 1999 09:22:38 -0700 (PDT) From: Matthew Dillon <dillon@apollo.backplane.com> To: tcobb@staff.circle.net Cc: blapp@attic.ch, freebsd-current@FreeBSD.ORG, freebsd-smp@FreeBSD.ORG Subject: Re: RE: network got stuck during high nfs-load Message-ID: <199907311622.JAA99944@apollo.backplane.com> References: <A0CFA284C004D211B7EE0060082F32A41F2830@freya.circle.net>
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The way I usually handle pseudo users via sendmail is to route
them via a dummy subdomain.
So, for example, my main server is 'apollo.backplane.com'. I route
mail destined for 'pop.apollo.backplane.com' to my special pop mail
backend.
My /etc/aliases and other forwarding tables then simply map the
usernames that I want to route to the dummy domain. For example,
the pop user 'fubar' would be mapped to 'fubar@pop.apollo.backplane.com',
where 'fubar' does not exist in the password file or anything like that.
In sendmail, it is a simple addition to ruleset 98:
R$+ + $* < @ pplus . $=w > $* $#popplus $: $1 < @ pplus . $3 > $4
R$+ + $* < @ pplus . $=w . > $* $#popplus $: $1 < @ pplus . $3 > $4
R$* < @ pplus . $=w > $* $#popplus $: $1 < @ pplus . $2 > $3
R$* < @ pplus . $=w . > $* $#popplus $: $1 < @ pplus . $2 > $3
And then add the new mailer:
Mpopplus, P=/usr/local/bin/dpopmail, F=SDEFhlMsu, S=10/30, R=20/40,
U=dpop, A=dpopmail $u
-Matt
Matthew Dillon
<dillon@backplane.com>
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