Gregory's Server@Tutanota nice article. I had a paid tuta account but switched back tot non-paid. I liked Tutanota a lot but had one major concern: quite some times my mail was rejected because it came from Tutanota. And one minor: I need to be able to share my contacts with other apps.
@Krit Thanks for your feedback. We're planning to add a new domain just reserved for paying users - this will fix the mentioned issue! A better contacts integration is also planned.