SendGrid
Twilio's application-email service, with scoped API keys, authenticated domains, event webhooks, and Inbound Parse.
Start with the first guide, then choose a sending, receiving, or feedback task. Each walkthrough identifies permissions, operational checks, and the boundary between the service and MailKite. Refer to the official SendGrid documentation for current platform requirements.
Explore the guides
Authenticate a SendGrid domain and scope the API key
Complete sender authentication and create a restricted Mail Send key without granting unnecessary SendGrid administration access.
Send one application message with SendGrid's SDK
Use the official SendGrid mail client with a restricted key and track provider acceptance separately from recipient delivery.
Receive application mail with SendGrid Inbound Parse
Route a dedicated receiving hostname to Inbound Parse and securely process its multipart requests and attachments.