---
title: "Send a single email"
method: POST
path: "/email"
tags: ["Sending API"]
---

# Send a single email

`POST /email`

## Headers

- `X-Postmark-Server-Token` string, required

## Request body

- SendEmailRequest
  - `From` string — The sender email address. Must have a registered and confirmed Sender Signature.
  - `To` string — Recipient email address. Multiple addresses are comma seperated. Max 50.
  - `Cc` string — Recipient email address. Multiple addresses are comma seperated. Max 50.
  - `Bcc` string — Bcc recipient email address. Multiple addresses are comma seperated. Max 50.
  - `Subject` string — Email Subject
  - `Tag` string — Email tag that allows you to categorize outgoing emails and get detailed statistics.
  - `HtmlBody` string — If no TextBody specified HTML email message
  - `TextBody` string — If no HtmlBody specified Plain text email message
  - `ReplyTo` string — Reply To override email address. Defaults to the Reply To set in the sender signature.
  - `TrackOpens` boolean — Activate open tracking for this email.
  - `TrackLinks` 'None' | 'HtmlAndText' | 'HtmlOnly' | 'TextOnly' — Replace links in content to enable "click tracking" stats. Default is 'null', which uses the server's LinkTracking setting'.
  - `Headers` MessageHeader[]
    - `Name` string — The header's name.
    - `Value` string — The header's value.
  - `Attachments` Attachment[]
    - `Name` string
    - `Content` string
    - `ContentType` string
    - `ContentID` string

## Response `200`

OK

- SendEmailResponse — The standard response when a postmark message is sent
  - `To` string
  - `SubmittedAt` string, date-time
  - `MessageID` string
  - `ErrorCode` integer
  - `Message` string

## Other responses

- `422` — An error was generated due to incorrect use of the API. See the Message associated with this response for more information.
- `500` — Indicates an internal server error occurred.

---

[API](https://skmtc.dev/postmarkapp/apis/postmark-api.md) · [All operations](https://skmtc.dev/postmarkapp/apis/postmark-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/postmarkapp/postmark-api/revisions/fdae25f55e2e/schema)