Glossary definition

SMTP readiness

SMTP readiness is the operational check that an inbox can authenticate and submit mail through the managed SMTP path without exposing its password.

How GTM Inboxes uses this term

GTM Inboxes computes smtpReadiness from inbox status, managed MTA assignment, SMTP and IMAP metadata, credential metadata, and recent redacted smoke-test logs before deciding whether a row can export.

What SMTP readiness does and does not prove

SMTP readiness proves connection and credential posture for the managed sending path. It does not prove inbox placement, spam-folder avoidance, or campaign performance. Prospect traffic still needs seed-placement evidence and launch-gate approval.

How GTM uses the check

Readiness output is included in inbox list and get responses, workspace readiness reports, and export partitioning. Ready inboxes can proceed while not-ready rows receive redacted blocker reasons.

Related glossary terms

SMTP smoke test

An SMTP smoke test checks whether one managed inbox can decrypt its stored credentials, authenticate, and submit a controlled test message.

Readiness-gated export

A readiness-gated export is a sequencer export that partitions ready inboxes from blocked rows using GTM readiness checks.

Seed placement

Seed placement is pre-launch evidence from controlled mailbox tests that shows inbox, spam, or missing counts by provider.

Related workflows

SMTP readiness checklist

Walk through the fields and checks that make an inbox export-safe.

Check a real domain

Move from the definition to a practical DNS and authentication check.

Seed placement workflow

How the concept shows up in the pre-launch evidence workflow.

Browse the glossary

Every cold email infrastructure term GTM models, checks, or gates.

Next step

See how readiness reports fit into the API-first agency workflow.

Read the readiness workflow