7 min
Send cPanel mail from a per-domain IP with mailips and mailhelo
Pin outbound Exim mail to a specific IP and HELO per domain on cPanel using /etc/mailips and /etc/mailhelo — the WHM toggles, file syntax, PTR rules, and how to verify it.
2026-10-05
8 min
Plesk email deliverability: SPF, DKIM, DMARC, and rDNS setup
Configure SPF, DKIM, DMARC, and reverse DNS on Plesk Obsidian so Gmail and Outlook accept your mail — including the DNS template defaults that quietly break third-party senders.
2026-10-01
7 min
Plesk outbound mail throttling: stop abuse before Spamhaus does
Per-domain Postfix caps, PHP-to-port-25 lockdown, and Plesk's outgoing-mail controls — the layered defence that keeps one compromised mailbox from blacklisting the whole server.
2026-05-17
8 min
Route cPanel outbound mail via SES, SendGrid, or Mailgun
Configure a smart host in Exim so every outbound message from cPanel is relayed through SES, SendGrid, or Mailgun — with per-domain overrides and the gotchas that bite resellers.
2026-05-17
8 min
Exim outbound throttling on cPanel: stop spam before blacklisting
Layered Exim limits, per-account caps, and queue triage on cPanel so one compromised WordPress install can't bury your server's IP on Spamhaus by lunchtime.
2026-05-16
6 min
Email deliverability on cPanel: SPF, DKIM, DMARC, MTA-STS
A 2026 deliverability checklist for cPanel operators — reverse DNS, SPF, DKIM, DMARC enforcement, and MTA-STS, with the exact records and where cPanel still expects you to do it by hand.
2026-05-16