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SMTP Credential

Use this type when workflows send emails through SMTP servers.

Configure​

  1. Open Credentials -> New Credential.
  2. Select type smtp.
  3. Set:
    • smtp_host, smtp_port
    • smtp_username, smtp_password (or env-backed password)
    • TLS flag and sender address
  4. Save and reference from SMTP workflow node.

Verify​

Run a workflow email step to a test inbox and confirm delivery.

Common issues​

  • TLS/auth mode mismatch with SMTP provider.
  • Sender domain not verified by provider policy.