Ms mia received a targeted offer by email for Blue Business Plus. She received the offer because she holds (and uses) a Starwood Business credit card. The Subject of the email is one you might not open:
FirstName. LastName this message is for you: You've been pre-selected to apply! Get 0% intro APR on purchases for 15 months
My partner received an identical offer. Given the current dearth of Amex MR bonus opportunities, she will probably apply for it. She doesn't have an SPG Business card, but does have a Green Business card, recently downgraded from Plat.