Get the current server configuration and status, including mode (dry-run/live), rate limit info, audit log path, and allowlist status.

Retrieve a specific SendGrid email template by ID, including all versions.

List all SendGrid email templates available in the configured account.

Validate and preview an email payload before sending. Returns the exact payload that will be sent and a single-use confirmation token valid for 10 minutes.

Send an email using a confirmation token from preview_email. The token is single-use and expires after 10 minutes. This is the only way to actually send emails.

Validate an email address format and check if it is in the server's recipient allowlist (if configured).