Centralized aliases

Derek Winkler dwinkler at ALGORITHMICS.COM
Thu Jan 2 22:22:47 GMT 2003


You could define you internal server as your smart host on the proxy server
and there's no need to define any users or aliases on the proxy.

-----Original Message-----
From: Michael Svendsen [mailto:michael at nsec.dk]
Sent: Thursday, January 02, 2003 5:19 PM
To: MAILSCANNER at jiscmail.ac.uk
Subject: Re: Centralized aliases

You just have to arrange a so called "drop-box" ;)

A possible solution could be:

on your DMZ-mailserver you have to add one account for each domain.
In your virtusertable just add:

@yourdomain     domainaccount

On your LAN-mailserver you shall use fetchmail (you may already use
fetchmail now)

in your .fetchmailrc you shall have something like:

poll DMZ-mailserver with proto pop3 user domainaccount there with
password "hidden" is * here

That should work ;)

> > One minor annoyance is that if the aliases (as well as every
> > other valid
> > email address) are not defined on the proxy then the mail is
> > rejected.  So,
> > all the email IDs and aliases have to be on the proxy.  But
> > if any ID or
> > alias is not ALSO defined on the mail server then mail sent
> > from the LAN to
> > that ID tends to bounce since the mail server (correctly)
> > thinks the mail is
> > destined to itself but does not find the ID or alias.  So,
> > user IDs and
> > aliases need to be defined twice, identically, in both the
> > server and alias.
> Maybe I'm missing something here, but I can't see why you need to
duplicate your aliases - unless your mailscanner box isn't set up to
relay for your domain.  I use mailscanner in front of an exchange box
and my mailscanner box doesn't know any of my users names.

Med venlig hilsen / Best Regards

Michael Svendsen
Newage Security
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