@Tutanota Apparently #tuta still hasn't set a concrete, near term date for the availability of the *option to export all emails in one go* .
So: Customers can easily import their emails to #Tutamail, but they have to manually select and export all of their emails if they want to migrate away to a different #email provider.
To me, that looks like a vendor lock-in.
You can keep on telling that it's already planned, but you should really walk the talk!