Here are the steps to add an image to an email template inside Lead Kahuna v4+ Beta (bonus feature for those who purchased Social Covers):

Step 1. The first thing to do is to have your photo ready.

Step 2. Next is, you need to copy or transfer the image file in the Public Sub-Folder of your Dropbox Folder (My Dropbox > Public > New Image Folder). 

This location of the image folder is VERY IMPORTANT. Uploading the image itself can take some time, depending on the image quality and size.

Step 3. After this, you go to the image inside the folder, and on the right-hand side, you will see a Share button. Click that button to see your Public link. Now click Copy to Clipboard.

Step 4. Paste the copied link in the Image Address Cell and click OK.

Step 5. Once done, the image will take a few moments to show, but you have it in full size.

Step 6. Double click the image itself to bring up the Properties box.

Step 7. Click a specific size and enter the values. 

Step 8. Once you are done, click OK.

Step 9. Preview the email to check everything worked out correctly, and you are off and running.

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