---
schema_version: "1"
id: c0a769b7e8a765cd325579286d612bba2c245dd18d374bc7cfdda732bdbddb24
title: IsEmailAddress()
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/marketing-cloud/ampscript/references/utilities/mc-ampscript-reference-utilities-is-email-address.md
canonical_url: https://developer.salesforce.com/docs/marketing/marketing-cloud-ampscript/references/mc-ampscript-utilities/mc-ampscript-reference-utilities-is-email-address.html
source_site: developer.salesforce.com
content_type: documentation
content_hash: f95f1857d3a08e3d61fa943e8098eecac489764ba0c0afd17fd1fdca4ff8082e
products:
  - AMPscript for Marketing Cloud
  - Marketing Cloud
---
# IsEmailAddress()

Tests whether an email address is well formed.

**note:** This function isn’t designed to test whether an email address or domain actually exists. It only tests the supplied email address to determine whether it’s structurally valid.

## Availability

<table>
  <tr>
    <td>Marketing Cloud Engagement</td>
    <td>✅ Yes</td>
  </tr>
  <tr>
    <td>Marketing Cloud Next</td>
    <td>✅ Yes</td>
  </tr>
</table>

## Syntax

```
IsEmailAddress(emailAddress)
```

The `IsEmailAddress()` function has one parameter:

- `emailAddress` (String): Required. An email address.

## Usage

This example checks to see if the email address _tomas.santos@example.org_ is valid.

```
IsEmailAddress("tomas.santos@example.org")
```

The example returns a result of `true`.

## Result Table

This table shows several function calls and the result of each one.

| Function                                         | Result  | Notes                                                                                                                   |
| ------------------------------------------------ | ------- | ----------------------------------------------------------------------------------------------------------------------- |
| `IsEmailAddress("pooja.chatterjee@example.com")` | `true`  |                                                                                                                         |
| `IsEmailAddress("pooja.chaterjee@example")`      | `true`  | It's technically possible, although rare, to have an email domain that doesn’t include a top-level domain such as .com. |
| `IsEmailAddress("pooja.chatterjeeexample.com")`  | `false` | This example is missing an at sign (@), making it invalid.                                                              |
| `IsEmailAddress("pooja@chatterjee@example.com")` | `false` | This example includes two at signs, making it invalid.                                                                  |
| `IsEmailAddress("@example.com")`                 | `false` | This example is missing the local part (the part of the address that comes before the at sign), making it invalid.      |
| `IsEmailAddress("pooja.chatterjee@.com")`        | `false` | This example is missing a second-level domain, but includes a top-level domain.                                         |