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