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