The Nxeon Blog
Guides for people who run their own servers.
Straight-talking tutorials and comparisons on VPS hosting, game servers, Linux and security. No fluff, just what actually works. 346 guides from the team that runs the servers.
Email guides
9 guides · newest first
How to Set Up DKIM on a Self-Hosted Mail Server
Generate a DKIM key, publish it in DNS and sign outgoing mail on your own Postfix server with OpenDKIM. The full command-by-command walkthrough.
How to Verify Your Domain for Email Sending
Before a service like SendGrid, Mailgun or Google can send as your domain, you must verify it in DNS. Here's what each record does and how to get verified fast.
How to Set Up a Catch-All Email Address
A catch-all captures mail sent to any address at your domain — even ones that don't exist. Here's how to set one up, the real risks, and smarter alternatives.
How to Forward Custom Domain Email to Gmail
Read mail sent to you@yourdomain.com right in your normal Gmail inbox — and even reply as your domain. The simplest way to look professional without a new inbox.
How to Set Up MX Records for Google Workspace
The exact MX record to add so Google Workspace receives mail for your domain, plus the SPF and DKIM records that keep your sending out of spam.
How to Set Up Business Email on a Custom Domain
Get professional you@yourdomain.com email working, whatever your options — managed provider or self-hosted. The DNS records, the trade-offs, and the setup path.
How to Stop Your Emails Going to Spam
A practical checklist for getting your email out of the spam folder — authentication, reputation, content and infrastructure — with the exact fixes that move the needle.
How to Set Up SPF, DKIM and DMARC Step by Step
The three DNS records that decide whether your email lands in the inbox or the spam folder. Here's exactly what to publish, in the right order, with real values.
How to Set Up Reverse DNS (PTR) for a Mail Server
A missing or wrong PTR record is the fastest way to get your mail server's email rejected. Here's how reverse DNS works and how to set the PTR correctly.
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