Deliverability in practice
Delivered and inboxed are different things. A message can be accepted by the receiving server and still land in spam, where nobody reads it. Deliverability covers the whole path: whether your domain is authenticated with SPF, DKIM and DMARC, whether its reputation is good, whether your list is clean, and whether recipients engage or complain.
Most deliverability problems in outbound are self inflicted: unverified lists, too much volume per inbox, missing authentication, or link heavy templates. Fix the infrastructure and the list before rewriting copy, because the best email in the world does nothing in a spam folder.
Last updated 2026-10-14 by Ishan Vats.
