If that's true, then it's misleading to call it e-mail. All the recipient gets is a link to an offsite database.

Hi lutusp,

The content displays automatically in the email client. The link is only relevant if you want to copy/paste/make in-line comments. Thanks for your comment.

Lindsay Co-Founder @ Pluto Mail

Now that google fetches the images from its own servers once and then renders for all, would this even work?

Sure, if they used a unique filename for each email. Something like render.png?id=12345.

no, he means that because google caches the image upon reciept you can neither change the email nor delete it after it is sent.

Last I've checked google does proxy the images, but doesn't cache nor prefetch them. Has anything changed recently?

I guess that's why the email can only be unsent or modified until the recipient opens it.

We support unsend at anytime. We technically could also support edit at anytime, even after open, but we do not because we believe editing after open serves no legitimate purpose - just manipulation. It doesn’t even seem fun to us. Thanks for commenting.

Lindsay, Co-Founder @ Pluto Mail