Question for the Experts

[Alvaro Marín]

Hi,

> So I am looking at a way to configure the ServerA, so it only excepts
> mail for this domain if it comes from server (The more powerful one) So
> it drops the spammers on ServerA


Just, configure firewall rules to avoid that situation and ServerB's
port 25 only accept connections from ServerA.
Client's authenticated mails should be sent through the submission port
(587).

Regards,

-- 
Alvaro Marín Illera
Hostalia Internet
www.hostalia.com