We have a server that sends mails, currently through perl sendmail.
We want to setup a second server (probably just a VPS) that will send the mail: The "main" server will send the mails to the VPS, the VPS will send the mails to the receivers.
We never *receive* mails. We want the VPS to accept only the mails from our main server, of course. The IP used on the VPS for sending mail will not be used for anything else, so we want close all other ports.
VPS and the main server will not be hosted in the same datacenter (no local network, so).
To calm everybody, I add that it isn't for spamming
All outgoing mails will concern our Clients' accounts.How to do this?!
Thank you