Freshly Exhumed (105597) writes "Jonathan Kim writes: 'You have an amazing newsletter and fanatic subscriber base, but did you know it’s at risk? Someone could accidentally end your relationship with a passionate reader, a concept we call a silent unsubscribe.' Email marketing spam aside, it is a fact that the venerable listserv still exists far and wide, and can be key to the communications of many mutual-interest groups. Unfortunately, one mistake from a recipient who mistakes spam for the real thing could cause the 'silent unsubscribe' phenomena. What follows is a possible solution, although if it is found to benefit email marketers in any way it will need to be developed further for enlightened use. Question: is this a widespread problem?"