[FR] Mailgun customers often route multiple domains and regions. Bob sends through [FR] your configured domain [FR] and API key—so receipts, confirmations, and template messages inherit the same DNS reputation work you’ve already done.
[FR] Important: [FR] You’ll provide api_key [FR] and domain [FR] in tenant credentials. Validation endpoints may require specific Mailgun plans; we degrade gracefully when unavailable.
[FR] Teams standardized on Mailgun who want the same governed conversational layer as SendGrid users—without switching ESPs.