On 21/09/2026 21:00, Ralph Seichter via Postfix-users wrote:
* Patrick Proniewski via Postfix-users:
So I guess I can rent a VPS and send my SMTP flow through the VPS IP
address. Question is: what would be the best way to do this?
"Best" is subjective. A typical approach is to rent a VPS or VM with at
least a static IPv4 address (plus IPv6 if available), and set up Postfix
on that machine as an outbound mail relay for authenticated clients.
Appropriate DNS records for forward and reverse resolution and SPF are a
must, or big players like Google or Microsoft won't accept mail from
your relayhost. Optional services like DKIM signing can be added. DNSSEC
should also be considered.
Thanks. Fortunately I’m well aware of that, I operate my own email
server in a datacenter since around year 2000. Only change is, I might
have to move it in-house and my difficulty lies in the articulation of
the email stack (at home) and the VPS acting as an exit point for SMTP.
I’m not willing to store emails on the VPS (transit/queue file is the
max I’ll do). Installing the full stack on the VPS it out of the picture.
The more I split things between the home server and the VPS, the more
complex the setup become, and I’m not too happy about complexity.
I wish I could just create a Wireguard tunnel that my home server could
use: that way, everything runs at home, including signing before sending
outside. I could not make it work (not a postfix problem, just a routing
problem).
Next «best idea» I have is to use postfix on the VPS to act as a relay,
but it means that — unless I’m mistaken — I need to set up signing on
the VPS. That’s the role-splitting I wish I can avoid.
patrick
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