Kartra Documentation Technical Documentation for Kartra


PostMark integration will require a API key from PostMark to integrate into Kartra.

*Please Note: This means most issues will need to be solved via PostMark and PostMark support.

Upon selecting the PostMark tab within the email gateway model window you will be presented with the following.

Postmark 02


You will need to login to PostMark on a separate tab and collect the key from the API options within PostMark.

After logging into PostMark, select the server you wish to use, and then select the Credentials tab within the menu options.

Postmark 01


*Please Note: PostMark may change their website from what appears in this document; but there should still be an API section with the key information.

Meanwhile on the original tab with Kartra, you will need to copy the “API Key” into the modal window.  At this point the create option will enabled. By selecting create you can now finish your PostMark email gateway integration.


If you are unable to find the “API Key” on PostMark or have issues with utilizing the webhook on PostMark, please contact PostMark support.

If your PostMark API Key does not work via Kartra, please contact Kartra support.

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