> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.getgreenspark.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Set-up My Post Action Email

To send post-action emails to your customers, you need to do two things:

1. Set up your post-action emails on the Zapier Action form of your Zap. You can find a guide to help set this up [here](/en/article/how-to-create-a-zap-1yf4wdw/).

2. Set up the post-purchase emails in the Greenspark app.

# Setup the post purchase emails in the Greenspark app

* Login to the Greenspark app and go to the Post purchase engagement page ( `Engagement hub` → `Post purchase engagement` ) select the drop down under `Through Greenspark Directly` and click through to `Manage` under `Custom Domain` and start by adding your custom domain to your account.

For more guidance on how to set this up click [here.](https://help.getgreenspark.com/en/article/how-do-i-add-a-custom-domain-np3n2h/) 

![](https://storage.crisp.chat/users/helpdesk/website/3fa02643ae649600/screenshot-2025-01-16-at-14210_c1j99p.png)
* Once your custom domain is set-up. Click through to `Manage` under `Email Campaigns.`

![](https://storage.crisp.chat/users/helpdesk/website/3fa02643ae649600/screenshot-2025-01-16-at-14220_12t6okt.png)
* From the context menu of Customer invitation or Customer update select Edit which will open the notification template editor.

![](https://storage.crisp.chat/users/helpdesk/website/3fa02643ae649600/untitled-31_xuxod6.png)
* Select `Settings` and input your custom domain.

![](https://storage.crisp.chat/users/helpdesk/website/3fa02643ae649600/screenshot-2025-01-16-at-14240_oqqer.png)

* Then Scroll down to the `Triggers` section of the form and select the `Customise triggers` checkbox.

![](https://storage.crisp.chat/users/helpdesk/website/3fa02643ae649600/untitled-32_134s2ok.png)

* From the list, select the Zapier-type triggers for which you want to trigger the post-purchase email sending from your Zapier integration.

![](https://storage.crisp.chat/users/helpdesk/website/3fa02643ae649600/untitled-33_1ku0n27.png)

||| It is important to note that the Zapier typed triggers are not selected/enabled by default, so every time a new trigger is created for the Zapier integration, you should come here and enable it.

* Click on Save to apply your changes and enable post action email sending.

![](https://storage.crisp.chat/users/helpdesk/website/3fa02643ae649600/untitled-34_cptgrl.png)