Eudora, the famous mail client for MacOS and Windows that used to be Open Source a long time ago [1] is returning to Open Source to allow Qualcomm to withdraw themselves from the market and refocus on their core business. Thank you Qualcomm, you made the right decision for you, your customers and everybody else.

See the FAQ

Source: MacNN

Notes

[1] I don't remember the licensing at that time, but I think it was BSD-like