Why does a mail server need a dedicated IP?

Two reasons, both about deliverability. Receiving mail means listening on port 25 — that needs a public IP of your own, which NAT plans don't give. And a shared IP inherits other people's reputation; a dedicated IP is yours to keep clean. This is the one workload where the IP genuinely decides success.

Can I set reverse DNS (PTR)?

Yes, and you must — receiving servers reject mail from an IP whose PTR doesn't match its hostname. On our dedicated-IP plans you set reverse DNS yourself from the dashboard. That plus SPF, DKIM and DMARC records is what gets you into inboxes instead of spam folders.

Small-IP ($16/mo) — 4 vCPU, 4 GB RAM, 35 GB NVMe, dedicated IPv4 with port 25 and reverse DNS available. Plenty for a personal or small-team mailserver (Mailcow, Mailu, or a hand-rolled Postfix/Dovecot). A busy multi-domain setup fits Medium-IP ($20).

Is running your own mail actually worth it?

Honest answer: it's more work than a hosted inbox, and deliverability takes care (warm the IP, get your DNS records right). But you own the data, pay a flat crypto price, and no third party reads or scans your mail. If that matters to you, it's worth it. If you just want email that works, a hosted provider is less hassle.

VPS for a self-hosted mail server

Run your own email on a server with a dedicated IP and clean reverse DNS — the two things that actually decide whether your mail lands. Crypto payment, no KYC. From $16/mo.

Most guides about self-hosting email skip the part that actually decides whether it works, and it isn't the software. You can set up Postfix in an afternoon. Whether your mail lands in inboxes or vanishes into spam folders comes down to two things: a dedicated IP and correct reverse DNS. Everything else is detail.

That's why email is the one workload where a NAT plan is a non-starter. Receiving mail means a server the world can reach on port 25 — you need a public IP of your own. And you need that IP's reputation to be yours, not shared with whatever a hundred other users are doing. A dedicated IP gives you both.

What matters, in order

A dedicated IPv4 — so you can listen on port 25 and own the IP's reputation.
Reverse DNS (PTR) that matches your hostname — receiving servers reject mail without it. On our dedicated-IP plans you set this yourself in the dashboard.
SPF, DKIM, DMARC records — the DNS trio that proves your mail is really from you. Get these right and you're in inboxes; skip them and you're in spam.
A warm IP — send gently at first. A brand-new IP blasting volume looks like a spammer.

We wrote the full walkthrough in the blog — this page is the short version of why the plan matters.

The plan

Small-IP ($16/mo) — 4 vCPU, 4 GB RAM, 35 GB NVMe, a dedicated IPv4, port 25 open, and reverse DNS you control. That's enough for a personal or small-team server: Mailcow or Mailu if you want a full stack with a web UI, or a lean Postfix + Dovecot if you like it minimal. Several domains and heavier volume? Medium-IP ($20/mo).

Who this is honestly for

Self-hosted mail is more work than a hosted inbox, and it rewards patience with DNS and IP warm-up. What you get in return: your mail data on a server you control, a flat price paid in crypto with no KYC, and nobody scanning your messages. If you're running email for privacy or independence, that trade is the whole point. If you just want a mailbox that works out of the box, a hosted provider is the easier road — and that's a fair choice too.

Ready to run your own? Small-IP is where to start, then follow the setup guide.

VPS for a self-hosted mail server

What matters, in order

The plan

Who this is honestly for

FAQ

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