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