I keep getting notification to confirm leaving the list. Is this legit or phishing?

--
*Every morning in Africa, a gazelle wakes up, It knows it must run faster
than the fastest lion or it will be killed. Every morning a lion wakes up,
it knows it must outrun the slowest gazelle or it will starve to death. It
doesn't matter whether you are a gazelle or a lion. When the sun comes up,
you better start running. - In "The World is Flat" by Thomas L. Friedman.*