I have a Linux Server (let's call it Server-1), running Spamassassin, Sendmail, which works as POP and SMTP Server for hundreds of Domains. Normally it processes incoming as well as outgoing emails.
But now, all the incoming emails comes from and through another Server (let's call it Server-2) which works like a gateway. This Server-2 runs Postfix with MailScanner, Amavis and Spamassassin, so my Server-1 doesn't need anymore to again scan incoming emails, just outgoing emails.I want to lower its load.
Question: how to accomplish it? Is it possible to configure this just at its parameters?