bounce message
noun[C]
ukus(alsobounce email)IT,COMMUNICATIONS
amessagetellingyou thatyouremaildid notreachthepersonyousentit to because theaddressiswrongor there is acomputerproblem:
You mayreceivedozens ofbouncemessagesfrommailserverstellingyou thatyourmessagecouldn't bedelivered.