Y’all have convinced me. Proton will be hearing from me.
they have a free plan that will let you hold up to 500 Mb. Unless you have a lot of image files or videos/music that is quite a bit of text email content. But if you keep it cleaned out it is plenty. Or you can pay a small fee and increase your capacity if you like. :)
Important note... There will be options of how you want your log in to work. I purposely chose the “username password only” option. If I lose my password then that is on me. But I did not want any of their “extra security features” they try to push. But that is up to you how you want to set it up. :)