Edison Mail is an email app for iPhone and Android that is used to manage several existing email accounts from one place. According to the vendor, the app blocks tracking pixels by default. It is published by Edison Software, which the vendor presents as part of YipitData, a research company headquartered in New York City. The vendor does not describe the app as a mail hosting service.
The vendor's privacy policy describes Edison Software as an affiliate of Yipit LLC, which operates as YipitData, and gives a contact address in California. It states that information collected through the service is transferred to and processed in the United States or elsewhere, without listing specific regions or cloud providers. For a European organisation this means that processing takes place outside the EU and under US jurisdiction, so the data flows should be assessed before the app is used for business correspondence.