You cannot directly embed a donation form in an email. However, you can use our Donate button.
From your dashboard, click on the Campaigns link in the side menu. Locate the campaign you want to add to your email.
Please click Go to Launchpad:
Select Donate Button from the side menu.
Then under the Donate Button tab, copy the code to embed a button that links to your Donorbox hosted form. You may choose the PNG button with or without a heart. You may also embed the button by copy and pasting the code into your email client, via the 'Copy Code' button.