真诚向前辈求教：经常莫名其妙收到信件要买我的出租房，更离谱的是

刚刚收到一封恐吓信说我的出租房有potential of transfer ownership. They urgently me to speak with them ASAP. They said they have recorded a brief message about this private matter. They also give a phone number to call. 前辈们是否收到类似的恐吓信？如何应对它？先谢谢了！