Self-hosted SMTP made painless

Deploy Postfix SMTP
servers in minutes.

MailNexus generates everything you need — install scripts, DNS records (SPF/DKIM/DMARC), SMTP credentials — for any Linux VPS. Pay per server. No subscription. No lock-in.

10+ Linux distros

Ubuntu 20/22/24, Debian 11/12, Rocky 8/9, AlmaLinux 8/9, CentOS Stream 9 — script branches automatically.

DNS done right

A, MX, SPF, DKIM, DMARC records generated with the exact values your provider expects.

Working SMTP

Hostname, user, password, ports 587 + 465. Built-in propagation + connectivity test.

Pay per server.

One credit = one fully configured VPS. No subscriptions, no expirations.

Credentials never leave your browser. We don't store your VPS root password.