The point about opens is the one I'd underline. Since Apple's privacy change we stopped reporting opens at all and just track replies and clicks per issue. Replies turned out to be the better signal anyway, because a reply tells you which topic actually landed. Did you see any difference in unsubscribe rates between issues that also lived as a web page and ones that were email only?
Narrower job matches what I see. A small list of people who asked for it beats a big one every time. How do you handle people who stop opening, prune or re-ask?
StackShortlist
Proof Over Promises.
The point about opens is the one I'd underline. Since Apple's privacy change we stopped reporting opens at all and just track replies and clicks per issue. Replies turned out to be the better signal anyway, because a reply tells you which topic actually landed. Did you see any difference in unsubscribe rates between issues that also lived as a web page and ones that were email only?