I've been getting these e-mail, too, or at least very similar ones.  I posted a screenshot of one last month, and I'm still receiving them nonstop. 

The weird thing is that they've come to at least two different e-mail accounts that I have, and I don't remember providing Ledger with even one .  The other weird thing is that people still trust this defrocked joke of a HW wallet company and still buy their wallets....but that's another story.