Issue Summary

It used to work in previous versions. It says here on the documentation Creating cards by email formatting tips :

Images in the email body are added as attachments to the card.

Steps to Reproduce

1. Go to an existing card and look for the Share button
2. Click the Share button and copy the email address inside the Email for this card box (Emails sent to this address will appear as a comment by you on the card)
3. Go to your email using the email as the recipient, Subject: test 2, add in your message body, add a text and embed (or drag) an image in the message body
4. Send your email 
5. Go to the same card and wait for a few minutes (or click Refresh) until you see a new comment  

Expected Results

The embedded image (images in the body) should be added as attachments to the card.

Actual Results

The embedded image is added as an inline comment and not as an attachment to the card:

Workaround

User will need to explicitly add the images as attachments, instead of embedded in the email body.