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Monitor your email deliverability

Email deliverability drifts over time — an IP gets listed, a DNS record changes, a spam complaint spikes. Keeping an eye on it means you catch problems before your mail quietly starts landing in spam. (Set the foundation first: DKIM/SPF/DMARC.)

1. Read your DMARC reports

Once DMARC is set with a reporting address (rua=mailto:…), receivers send you aggregate reports — who’s sending as your domain and whether SPF/DKIM passed. They’re XML (ugly by hand); a free DMARC report viewer makes them readable. Watch for:

  • Your mail consistently passing SPF+DKIM.
  • Unknown sources sending as you — a sign of spoofing (tighten to p=reject).

2. Check blacklists regularly

Your server’s IP can land on a blocklist from a spam complaint or a compromised site. Look it up periodically on a blacklist checker. If listed:

  • Find and fix the cause (scan for malware, check for a hacked site sending spam).
  • Follow the blocklist’s delisting process.

3. Seed / inbox-placement tests

Before a newsletter or important send, run a mail-tester check: send to the address it gives you and get a score plus a list of issues (auth, content, blacklist status). Fix anything flagged.

4. Watch the signals that predict trouble

  • Rising bounces → list hygiene or reputation problem → fix bounces.
  • Spam complaints → your content or sending practices.
  • Sudden volume from a new domain/IP → warm up gradually.

Keep the fundamentals solid

Deliverability rests on authentication + reputation:

Running OrbixPanel? DKIM signing is set up at install; add monitoring to keep it healthy. OrbixPanel.com → — the free, self-hosted, AI-powered hosting control panel.