Re: secondary MX / relay_recipients

[Magnus Bäck <magnus@xxxxxxxxxxx>]

On Friday, October 01, 2004 at 16:24 CEST,
     "J.D. Bronson" <jbronson@xxxxxxxx> wrote:

> I have a secondary MX postfix machine
> that I use 'relay-domains' and 'relay-recipients' on (for spam control).
> 
> It works fine however I noticed this:
> 
> 1. if I email to foo@xxxxxxx and it happens to hit this backup mx
> machine things work fine.
> 
> 2. if I email to foo@xxxxxxxxxxxxxxxxxxxxx, the email is rejected:
> Recipient address rejected: User unknown

Why on earth would anyone do this? And if they do, does their mail
deserve to be delivered properly? I think you are creating a problem
for yourself.

Nevertheless, use virtual aliasing to solve your imaginary problem.

user1@xxxxxxxxxxxxxxxxxxxxx     user1@xxxxxxx
user2@xxxxxxxxxxxxxxxxxxxxx     user2@xxxxxxx
...
usern@xxxxxxxxxxxxxxxxxxxxx     usern@xxxxxxx

Do NOT use wildcards aliases or regular expressions, because doing
so will break recipient validation.

[...]

-- 
Magnus Bäck
magnus@xxxxxxxxxxx