Intel did this to me with a job application... they just sent tons of promo shit even after I unsubscribed
And people wonder why I make unique email addresses for every site and even multiple for some sites. It's for exactly this (and to see who's selling it). My only real recourse is to delete the email address. Thanks mozmail, and thanks bitwarden for integrating. But it's also dumb as shit that we have to do things like this.