bramgg is right in his comment. we are using images to display the text. when the user edits / "unsends" and email we simply re-render the image.

bramgg is also right about gmail's image caching however we found a way around it

as for the privacy: we will upload our policy soon (it's being reviewed atm). but simply put: - we do not ever sell your data to 3rd party - all of the email info are stored heavily encrypted on our servers - the images are behind a secure proxy - once you delete an email it completely removed from our servers