OtherInbox, a US-based company focused on separating emails, has raised $1.5m from a consortium of angels and law firm Wilson Sonsini Goodrich & Rosati.
OtherInbox has raised $4m in total, according to news provider Austin Business Journal.
Wilson Sonsini has had a long history of taking equity in its clients, such as VA Linux, Ask Jeeves, Google and Webvan, and run an investment fund with staff as limited partners.