Blog

Guides from the NOC

Written from running the hardware — what breaks, why, and the command that fixes it.

3 posts matching “mail-server” in VPS · Clear

All 4 Most read VPS 3 Troubleshooting 1
VPS VPS Hostname & FQDN: Why Mail and cPanel Care How It's Set

Mail still bouncing after you fixed SPF, DKIM and PTR? Learn how to set your VPS hostname and FQDN correctly for Postfix, Exim and WHM.

21 July 2026 · 5 min · 17 views VPS Self-Hosted Mail Server on a VPS: Postfix + Dovecot Guide

Want your own mail server instead of paying per mailbox? Step-by-step Postfix and Dovecot setup on a VPS, with the DNS records that make it actually deliver.

18 July 2026 · 5 min · 22 views VPS PTR Record Missing? Fix VPS Mail Getting Rejected

VPS mail bouncing or landing in spam even with SPF/DKIM/DMARC set? Learn how to check, request, and match a PTR (reverse DNS) record the right way.

15 July 2026 · 6 min · 22 views