I was purchasing something from a site overseas and Chase sent me a lot of emails within seconds of my click to buy.
What is interesting, before my purchase ever went through, two different companies were charging very similar amounts on my card, but not the company that I was trying to use. The scam companies beat the legitimate one.
Anyway, they do send emails.
Chase also sent me an email concerning my account. I did not reply to it, but did call the phone number on the back of my credit card. The email was legit, but I will continue to handle situations like this, in the same way.
They send emails asking you to call them, not to click on a link, according to BofA.