Forwarding mail

[Ken Anderson]

Antony,

Your solution is much simpler and appropriate for most.

We have an extra complication that made the way we do forwarding
necessary. We had Postini before we had MS/SA, and a few customers would
have our heads if they lost their postini 'message center'. But, Postini
costs $$$(and has had some issues lately..), so we don't filter all mail
there. Postini forwards to our MS/SA machines and then mail gets
forwarded on to the mailhub. So, depending on the first MX to fail
doesn't really work in our case.

Now, I just need to fix up a good user interface for SA rules and
managing quarantined mail and we can dump Postini.

p.s. your sigs are always a good read!

Ken A.
Pacific.Net

Ken Anderson wrote:

> That's really a sendmail question, but here's how we do it:
>
> The MX for the domain(s) point to MS/SA machine.
> The MS/SA machine has entries in local-host-names for all domains we
> accept mail for. Sendmail on MS/SA relays mail to hub using
> virtusertable entries that point at the hub.
>
> ---
> in sendmail.mc
> "FEATURE(`virtusertable', `hash /etc/mail/virtusertable')dnl"
> ---
>
> virtusertable looks like this:
>
> @domain.com %1 at mailhub.domain.com
> user at someotherdomain.com user at mailhub.domain.com
> etc....
>
> The first one catches the default domain and forwards mail to the mail
> hub. The other entries catch virtualuser at otherdomains and forward those
> to local user mailboxes on the mailhub.
>
> Also, the mailhub only accepts SMTP connections from the MS/SA machine,
> otherwise spammers figure out how to get around your filter. :-(
>
> Ken A.
> Pacific.Net
>
>
>
> Joe Stuart wrote:
>
>> I am trying to setup Mailscanner and spamassasin on a mail server that
>> is supposed to scan the mail then forward it onto the primary mail
>> server. Could anyone point me in a direction on how to configure
>> sendmail to do the forwarding.
>>
>> Thanks
>>
>>
>
>