Send Email

Send a single email using the Resend-compatible endpoint.

POST /emails

The sending domain must already have outbound sending active in SDP Email.

Building with Laravel? Follow the Laravel quickstart to use this endpoint through Laravel Mail.

Example

curl -X POST "https://email.sdp-platform.com/emails" \
  -H "Authorization: Bearer your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "from": "Acme <hello@example.com>",
    "to": ["delivered@example.net"],
    "subject": "Hello world",
    "html": "<p>It works from SDP Email.</p>"
  }'

Response

{
  "id": "49a3999c-0ce1-4ea6-ab68-afcd6dc2e794"
}

Body Parameters

Parameter	Type	Required	Description
`from`	string	Yes	Sender address. The domain must belong to the API key's company.
`to`	string or string[]	Yes	Recipient address or addresses.
`subject`	string	No	Email subject.
`html`	string	Required without `text`	HTML body.
`text`	string	Required without `html`	Plain text body. If omitted, text is derived from `html`.
`cc`	string or string[]	No	Carbon copy recipients.
`bcc`	string or string[]	No	Blind carbon copy recipients.
`reply_to`	string or string[]	No	Reply-To recipients.
`headers`	object	No	Custom headers. Reserved message headers are ignored.
`attachments`	array	No	Base64-encoded attachments.

Attachments

Attachments use base64 content:

{
  "attachments": [
    {
      "filename": "invoice.pdf",
      "content": "JVBERi0xLjQK...",
      "content_type": "application/pdf"
    }
  ]
}

filename and content are required for each attachment.

Reserved Headers

The API ignores custom values for headers that are derived from the request or generated by SDP Email:

from, to, cc, bcc, subject, message-id, reply-to,
content-type, mime-version, content-transfer-encoding