Edison Mail users report that after enabling a new account syncing feature in the app, they have full access to email accounts of other users. Edison Mail is one of the more popular third-party email applications for iPhone, iPad, and Mac. The problem appears to stem from a new syncing system that rolled out to Edison Mail clients last week. Edison has not responded to the complaints on social media, despite multiple users pointing out that they seemingly have access to accounts that arent theirs.”]
Source: https://9to5mac.com/2020/05/16/edison-mail-unauthorized-access/