SendGrid posts parsed inbound email data to your configured webhook URL as multipart/form-data. The parsed payload includes email headers, body content (text and HTML), attachments, envelope information, and optionally spam scoring data. The total message size including attachments must not exceed 30 MB. Your endpoint must respond with a 2xx HTTP status code to acknowledge receipt and prevent retr
A fully parsed inbound email with separate fields for headers, body content, and attachments delivered as multipart/form-data.
Content-Type: multipart/form-data
RawEmail
An inbound email delivered as a raw MIME message when the Send Raw option is enabled in your Inbound Parse settings.
Content-Type: multipart/form-data
About AsyncAPI
The AsyncAPI specification describes event-driven APIs the way OpenAPI describes request/response APIs. A channel is the named pipe — a webhook URL, a Kafka topic, a WebSocket route, an MQTT subject — that producers and consumers publish or subscribe to. Each channel carries one or more messages with structured payloads, and an operation declares whether a given party sends or receives on that channel.
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