> Why should Fastmail invest in Thunderbird, an open-source email client run by a completely unrelated organization? Of course they could, out of good will. It

> Why should Fastmail invest in Thunderbird, an open-source email client run by a completely unrelated organization? Of course they could, out of good will. It's likely cheaper to submit self-serving patches than to build and maintain your own email client. > But you can't demand that they do. Who's demanding anything?