---
title: "Sending a Single Prepared Email"
slug: "sending-a-single-prepared-email"
updated: 2026-02-25T14:04:44Z
published: 2026-05-11T12:41:36Z
canonical: "docs.mapp.com/sending-a-single-prepared-email"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mapp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Sending a Single Prepared Email

In order to send a prepared message to a single recipient, you'll first have to make sure they exist in your system. Once you have their ID, you can send them the message and add them to the message's group.

> If you'd like, you can test with our Postman Collection here:
> 
> [](https://cdn.document360.io/554b9b98-6720-4d8b-9919-c7b203d72648/Images/Documentation/Sending Single Message.postman_collection(2).json)Sending Single Message.postman_collection(2)5.24 KB[](https://cdn.document360.io/554b9b98-6720-4d8b-9919-c7b203d72648/Images/Documentation/Sending Single Message.postman_collection(2).json)

## Prerequisites

Before you begin, make sure you have valid authorization credentials. Please see [this page](/v1-api/apidocs/getting-started-with-engage-api) for more information.

The message needs to be set up ahead of time in Engage, as you need the **messageID** for this task. You will also need the contact's email.

## Procedure

In order to search for a contact or update their information, you will need to decide which identifier you'd like to use. We'll use their email. If you already have the contact's **recipientID** (this is the same as user or contact ID), you can skip this step.

| Contact Identifier Type | Definition |
| --- | --- |
| EMAIL | The identifier is an email address. |
| MOBILE | The identifier is a mobile number. |
| APP_ALIAS | The identifier is a mobile app alias. |
| EXTERNAL | The identifier is a value generated by an external system. |
| ID | Contact (User) identifier |

### 1. Use a POST request to check if the contact exists

```javascript
'POST' \  'https://your-engage-domain.com/api/rest/contact/get' \
{
  "type": "EMAIL",
  "value": "j.mcexample@example.com"
}'
```

```javascript
<soapenv:Envelope
    xmlns:soapenv="https://schemas.xmlsoap.org/soap/envelope/"
    xmlns:ecm="https://your-engage-domain.com/developer/ecmapi">
    <soapenv:Header/>
    <soapenv:Body>
        <ecm:contactGet>
            <identifier>
                <type>EMAIL</type>
                <value>j.mcexample@example.com</value>
            </identifier>
        </ecm:contactGet>
    </soapenv:Body>
</soapenv:Envelope>
```

| Response | Description |
| --- | --- |
| 200 | From this request, you should receive a **200** response, with information about the contact. This includes information like their contactID. |
| 400 | If the profile does not exist you will receive a **400** response. You can also double-check the email used in the call if you believe there is an existing user profile. |

### 2. Use a POST request to send the prepared message

This method also automatically adds the user to the recipient group of the prepared message. You can include a TLS sender profile and attachments encoded using [base64encode.org](https://www.base64encode.org/).

```javascript
POST' \
  'https://your-engage-domain.com/api/rest/message/sendSingle?messageId=23541&recipientId=33457' \
{
"parameters":
[]
}
```

```javascript
<soapenv:Envelope
    xmlns:soapenv="https://schemas.xmlsoap.org/soap/envelope/"
    xmlns:ecm="https://your-engage-domain.com/developer/ecmapi">
   <soapenv:Header/>
   <soapenv:Body>
      <ecm:messageSendSingle>
         <messageId>23541</messageId>
         <recipientId>33457</recipientId>
        <additionalContent>
         </additionalContent>
      </ecm:messageSendSingle>
   </soapenv:Body>
</soapenv:Envelope>
```

## Conclusion

You should receive a **204** response, with no further information. This indicates the message has been sent. If there was a problem, you may receive a **400** response.