Email integration is one of the highest-ROI OpenClaw capabilities — and also one of the highest-risk.
Community reports cluster around:
- OAuth works once, then repeatedly asks you to re-auth (or silently stops).
- Fresh VPS/Docker deploys “forget” the email session.
- New dedicated Gmail accounts get flagged quickly.
This guide focuses on reliability and blast-radius control rather than “just make it work once”.
Security reading (recommended before you give an agent inbox access):
0) Before you connect an inbox: safer defaults
Do these first:
- Use a dedicated mailbox (not your primary email).
- Use minimal permissions/scopes (read-only if that’s enough).
- Treat state persistence as mandatory (tokens live in state).
Persistence guide:
1) Choose an auth strategy you can operate
Option A: OAuth (convenient, but can be brittle)
OAuth is often the easiest to start with, but for unattended 24/7 agents it can become operational debt:
- refresh token invalidation
- “suspicious activity” checks
- device/session churn after redeploys
Option B: IMAP/SMTP (simpler mechanics, harder secret handling)
IMAP/SMTP can be more predictable if you:
- store credentials in a secret manager (not plaintext in git)
- limit the account’s privileges
- monitor for auth failures and rotate creds
If you are using a provider that supports app passwords (or a dedicated mailbox provider), this can be the boring path.
2) Why Gmail keeps asking you to re-auth
In practice, repeated re-auth prompts usually come from one of:
- State not persisting (containers reset / VM image reset) → tokens disappear.
- Multiple installs / wrong runtime → service writes tokens to a different home/state than you think.
- Token refresh failures (provider-side) → refresh fails, and the integration falls back to “needs login”.
- Security policy on the Google account (new account flags, Workspace restrictions, 2FA policy mismatch).
The first two are solvable on your side; fix them before assuming “Google is broken”.
Start with:
3) Make failures observable (so you stop guessing)
When email stops working, capture evidence before changing config:
openclaw status --deep
openclaw logs --followIf the failure is OAuth-related, you may see refresh errors in logs.
Related OAuth fix pattern (provider example):
4) Reliability patterns that actually work
4.1 “Forwarding mailbox” pattern (recommended for many teams)
Instead of giving OpenClaw your primary inbox:
- Create a dedicated mailbox (or alias) that only receives forwarded/filtered emails.
- Only forward messages that are safe to automate on (alerts, receipts, support queue).
Benefits:
- reduces prompt injection surface (less untrusted content)
- reduces business risk
- easier auditing (“what did the agent see?”)
4.2 Split “read” and “send” identities
If you need outbound email, separate identities:
- an inbox reader account
- a sending-only account with strict allowlist recipients
4.3 Always write artifacts + summaries
For cron-driven email processing, have each run:
- write a timestamped report into workspace
- send a short summary message (linking to the artifact)
Cron reliability:
5) If Gmail is too fragile: alternatives
Pragmatic alternatives when OAuth or account policy becomes too costly:
- A dedicated mailbox provider for automation (separate domain/user)
- IMAP/SMTP with app passwords / token-based credentials (where supported)
- A relay service that provides a stable API (with strict allowlists and audit logs)
The best “alternative” is the one you can:
- keep stable without daily manual login
- monitor and audit
- revoke quickly if compromised