Deliverability Isn't Sexy, But It's Probably Why Your Emails Don't Convert

SPF, DKIM, DMARC

If you don't know whether you have all three set up, you don't. 30% of marketers miss this. Run through MXToolbox and fix in a day.

Domain warming

Never send a 500,000-email blast from a cold domain. Ramp up over 2–4 weeks. Mail providers flag big spikes as spammer behavior.

List hygiene

Remove hard bounces immediately. Sunset inactives after 90 days. Your deliverability reputation is only as good as your most-ignored segment.

The re-engagement play

Before sunsetting dormant contacts, send one last 'we're cleaning our list' email with a re-opt-in CTA. You'll save 15–25% of the list and clean the rest honestly.