Date: Fri, 06 Nov 2009 07:57:35 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Olivier Nicole <Olivier.Nicole@cs.ait.ac.th> Cc: questions@freebsd.org Subject: Re: How to configure sendmail Message-ID: <4AF3D6EF.3000108@infracaninophile.co.uk> In-Reply-To: <200911060730.nA67Uu2O037135@banyan.cs.ait.ac.th> References: <200911060730.nA67Uu2O037135@banyan.cs.ait.ac.th>
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Olivier Nicole wrote:
> Hi,
>=20
> I have this stupide little configuration that I cannot manage to get
> working.
>=20
> I have one machine a.domain.net that I want to be able to deliver
> system mail (like cron and so on) with the following rules:
>=20
> - user1 on a.domain.net has the same username as on domain.net; I
> want that mail sent to user1 is delivered to user1@domain.net;
>=20
> - user2 on a.domain.net has no corresponding user on domain.net, but
> it has an alias defined; I want to mail sent to user2 is delivered
> to the alias.
>=20
> - of course, mail addressed to a full address x@y.z should be
> delivered accordingly, eventually using a mail relay.
>=20
> I tried using masquerade in submit.mc, user1 is then rewritten as
> user1.domain.net, but the alias for user2 is not parsed and user2 is
> also rewritten as user2@domain.net.
>=20
> How can I solve my problem?
virtusertable will certainly help with the first case, and it might=20
help with the second case. It depends if the alias in the 2nd expands
to multiple recipients (which virtusertable can't do). virtusertable is
a lot like alias expansion, but with the following important differences:=
* The address match is against both the username and the host part of
an e-mail address. aliases only match against the username part.
* The username part can be wild-carded, and the matched wild text can
be used to modify the destination address.
* virtusertable only provides a 1-to-1 mapping -- aliases provide a
1-to-many mapping.
virtusertable just changes the envelope addresses: it doesn't change any
of the addresses in the mail header so the mail in the first case will
still show 'user1@a.domain.net' as the destination address when read in
a mail client. To change that, you could also use genericstable.
Cheers,
Matthew
--=20
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
Kent, CT11 9PW
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