Deliverability
The Email Deliverability Checklist (2026)
A practical email deliverability checklist for 2026: the four numbers that tell you where you stand, the authentication records you must get right, sending domain structure, list hygiene rules, unsubscribe mechanics, content checks, monitoring cadence, and a 20-minute triage sequence for when inbox placement suddenly drops.
Aug 25, 202610 min read