80 out of 16K is bang on the half-of-one-percent benchmark I've always used for Unsubscribes. If it gets too close to 1%, you'd have cause for concern, and if i

80 out of 16K is bang on the half-of-one-percent benchmark I've always used for Unsubscribes. If it gets too close to 1%, you'd have cause for concern, and if it gets too close to 0% then you have a spam filter issue that stops a lot o delivery.