# Email Distribution

## 📧 What is email distribution ?

Using the email distribution features you can easily send out invitations to a list of email recipients who will be able to take the survey using a uniquely generated code. This unique code allows you also to restrict access to the survey and to track if the invited respondents have answered your survey or not.

{% hint style="info" %}
🧙  You may also replace the uniquely generated codes by any pre-generated code of your choice using the [token](https://docs.ngsurvey.com/form-management/security/security-items/tokens) features. 
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 Emails recipients can be added 

* [Manually entered email lists](https://docs.ngsurvey.com/form-management/campaigns/campaign/email-distribution/email)
* [Imported using a CSV file](https://docs.ngsurvey.com/form-management/campaigns/campaign/email-distribution/recipients)
* [Using members of panel](https://docs.ngsurvey.com/form-management/campaigns/campaign/panels)

{% hint style="warning" %}
While automatically enabled during the campaign launch its important to note that the i[nvitation code security item](https://docs.ngsurvey.com/form-management/security/security-items/invitation-code) must be enabled on your survey to validate the invitation codes and to link the email to the respondent.
{% endhint %}