Email glossary

Email Deliverability

Email deliverability is how reliably your emails land in the inbox instead of the spam folder.

When you send an email, the receiving service decides where to put it: the inbox, the spam folder, or nowhere at all. Deliverability is the share of your emails that actually reach the inbox.

It depends on a few things working together: proving your email is really from you, keeping a good track record with email providers, and only sending to people who want to hear from you.

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Last updated: June 25, 2026