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/APIs & SDKs/Authentication/Send test email using the saved email provider
POST/projects/{project_id}/branches/{branch_id}/auth/email_provider/testbeta

Send test email using the saved email provider

Sends a test email using the branch's already-saved custom SMTP configuration. Only the recipient_email is provided — the stored SMTP settings and password are used server-side, so the caller does not need to re-supply (or be able to read) the password. This avoids the GET response's masked password being sent back, which would fail SMTP authentication.

Requires a configured custom SMTP provider on a Better Auth integration. A shared provider, a missing configuration, or a non-Better-Auth integration is rejected.

Markdown for AI context

Quick start

REST API - curl
curl "https://console.neon.tech/api/v2/projects/$PROJECT_ID/branches/$BRANCH_ID/auth/email_provider/test" \
  -X POST \
  -H "Authorization: Bearer $NEON_API_KEY"
Also available in
neon neon-auth config email-provider test --recipient-email <recipient-email>

Parameters

Project ID
project_id
string

The Neon project ID

Branch ID
branch_id
string

The Neon branch ID

Request body

1 required Required: recipient_email.

Recipient email
recipient_email
string

The email address to send the test email to.

≥1 chars, ≤256 chars

Response

200

Response with the result of the test email send

Depth
"success": (boolean),req
"error_message": (string),

Errors

default

General error

This endpoint can return the standard Neon API error response.

Response fields

  • message Required. Human-readable error message.
  • code Required. Machine-readable error code.
  • request_id Optional. Request identifier for debugging. You can provide one with the X-Request-ID header.

Retry guidance

If no response is returned, the request may still have reached the server. This is why retry safety depends on the method and status code.

Idempotent methods (GET, HEAD, OPTIONS) are generally safe to retry after a network error or timeout. Non-idempotent methods (POST, PATCH, DELETE, PUT) can change state, so avoid automatic retries unless your workflow can tolerate duplicate effects.

Responses with 423 Locked or 503 Service Unavailable are safe to retry. 423 Locked means the resource is temporarily locked, usually because another operation is in progress.

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