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Self-hosted Email Server
(alien.top)
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.
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We welcome posts that include suggestions for good self-hosted alternatives to popular online services, how they are better, or how they give back control of your data. Also include hints and tips for less technical readers.
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Yes, you can.
I don't think you need postfix-to-postfix. You just configure your VPS server's VPN-facing IP address in your dovecot or mail client (instead of the conventual localhost address).