Inboxen

Inboxen is an email server program that provides an unlimited number of unique inboxes. Instead of assigning a fixed quantity or setting a maximum, it lets you have as many distinct inboxes as you need. Each inbox is unique, making the program suitable for people who need numerous separate inboxes or who would otherwise run into a finite inbox limit. Its purpose is straightforward: to maintain an open-ended supply of inboxes rather than restricting users to a set number. Inboxen can serve as an open source replacement for Gmail when the main requirement is access to many unique inboxes without a cap. Its stated scope is narrower, however: Inboxen is described specifically as a way to provide unlimited distinct inboxes. The available information does not establish that it includes Gmail’s other features, so it should not be assumed to match Gmail beyond this core inbox function.