Actually you can modify this in the basic settings.
Hi, I'm using mailbox.org since several years, for two familly accounts and business.
They got temprorary anonymous e-Mails which will expire every n month or so, unless you navigate in the menu and extend the period every n month.
Too little too late, or just in time?
I feel like VW has missed out in comparison to Renault, Opel and all the others (especially China).
Also I wouldn’t want to pump my money into their mis-management, but they are European after all..
For Apple it is best to stick with the native e-Mail client Apple mail.
However, this is only mail. Then other things would need caldav and carddav servers.
What do associate with outlook? The complete online suite or the e-Mail programm only? What about calenders and notes?
I guess, you cannot convince per se. When the onboarding experience is easy and the conent is convincing, people will stick around.