The Email Deliverability Checklist for 2026
A copy-paste checklist covering authentication, list hygiene, content and monitoring — everything to verify before you send.
Use this email deliverability checklist before any important send. If every box is ticked, you have done the work that decides inbox placement.
Authentication
- SPF published and under the 10-lookup limit.
- DKIM signing with the correct selector.
- DMARC at least at
p=quarantine, ideallyreject.
List & reputation
- Double opt-in; no bought lists.
- Hard bounces removed; inactive contacts pruned.
- New domains/IPs warmed up gradually.
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Content
- Balanced text and images, plain-text version included.
- Visible unsubscribe and one-click List-Unsubscribe.
- No link shorteners or mismatched links.
Monitoring
- Google Postmaster Tools connected.
- Bounce and complaint rates watched per send.
Sendersy covers most of this automatically. Start free and ship with confidence.
Строит инфраструктуру отправки Sendersy. Десять лет занимается доставляемостью, SPF/DKIM/DMARC и репутацией IP.
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