MDaemon now supports OAuth 2.0, which is a security standard that allows two parties to reliably and securely exchange information. For example, it allows one service (such as MDaemon) to access resources on another service (such as GMail or Microsoft 365) on behalf of the user. This is also known as delegated authority, and it allows MDaemon users to seamlessly download their email from GMail or Microsoft 365 into their MDaemon mailboxes without having to directly login on those platforms.