Customer email (optional)

Resend

Your own customer email domains, verified through the Resend API.

At a glance

Category
Customer email (optional)
Required
Optional
Auth
API key or token
Powers
None — context only
Freshness
Stale after 12 hours
Webhook
None
Key format
re_

Connect it

  1. 1Create a Resend API key with full access — sending-only keys cannot list domains.
  2. 2Press Connect on Resend and paste the re_ key.

The API key is created here: resend.com.

Worth knowing

  • This is your mailer, not Seiton's. Briefing delivery is configured under Reports and does not use this key.

Disconnecting

Disconnect from the Integrations page. Seiton deletes the stored credentials, removes any webhook endpoint it created in your account, and strips the fields this provider owned out of your snapshots — those metrics go back to insufficient data rather than freezing at their last value.

Revoking the token or OAuth grant inside Resend works just as well and stops reads immediately. The connection then shows as revoked on the next sync, with the reason.