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 '[EMAIL PROTECTED]',
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
<[EMAIL PROTECTED]>
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