I've, let's say, 5 servers. They are either public and private or only private (network), they all send e-mails, either system e-mails (local mailbox) or installed application (wiki, issues tracker, etc.).
And I've a 6th which I want to use as "central" server.
The idea is to configure all the server to send their e-mail to the 6th which will either deliver e-mails directly, or transfer them to third party (like mandrill, my isp, or someone which will take care of configure all delivery things (spf, domainkeys, etc.)
- How do I need to configure the 5 servers?
- How do I need to configure the "central server"?
Thanks for the guidance.