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