I'm not sure it's almost impossible. Let's look at the two biggest email providers out there. 1) GSuite. Here's their data processing terms https://cloud.goo

I'm not sure it's almost impossible. Let's look at the two biggest email providers out there. 1) GSuite. Here's their data processing terms https://cloud.google.com/terms/data-processing-addendum/index-20220630 https://cloud.google.com/terms/data-processing-addendum/inde... 2) Office365. Here you go https://www.microsoft.com/licensing/docs/view/Microsoft-Products-and-Services-Data-Protection-Addendum-DPA?lang=1 https://www.microsoft.com/licensing/docs/view/Microsoft-Prod... So both of them will absolutely sign one. Maybe you don't like google and microsoft. Let's look at some others. What about Fastmail? https://www.fastmail.help/hc/en-us/articles/6049922252943-Fastmail-Data-Protection-Policy https://www.fastmail.help/hc/en-us/articles/6049922252943-Fa... Basically any legitimate email service will sign a gdpr-compliant data processing agreement as far as I can see. Certainly all the ones I have ever used do.