Embed images to create newsletters (or even html image).
As an entrepreneur with clients in the entertainment industry, the use of a newsletter or template is what I regularly use with my clients.
I have been able to send off newsletters or newsletter-type emails to clients with Gmail, however, my dream is to get off gmail completely. I hope with the paid subscription that not only would I be able to import my other emails and use them as an alias going forward. However, I have not done this transition because the functionality I have in gmail (ie. creating templates and newsletters) are not available yet via protonmail.
Yes, it is a great idea. If you are using wordpress site, you can also ask user to subscribe for notifications and many plugins are available for this such as onepush notification. I am using it on my carpet cleaner reviews website, check out here https://carpetcleanerpicks.com/best-handheld-steam-cleaner/
Absolutely, the ability to create newsletters via ProtonMail, with at least a couple layout templates, would be great. It would also be helpful to allow recipients to securely unsubscribe and/or change delivery frequency to a daily/weekly/monthly digest.