Lashback UnsubSafe Toolbar - Version 3.1 UnsubSafe is a proactive, intelligent anti-spam technology that consults a centralized database of online e-mail marketers reputations to make sure your unsubscribe request will be honored. If the marketer is Trusted and has a working unsubscribe mechanism, LashBack can automate the unsubscribe process. UnsubSafe works in conjunction with other spam filtering services or as a stand-alone application.