Yes, don't respond. Many times regardless of a company's insignia or other convincing info, porno jepang scam artists largely from Nigeria and the East Asia will attempt to access an account you may have regardless of whether you have an account with the bank in question. It's called phising (fishing). Don't respond as it could damage your software with a virus and possibly give the bad guys personal info on your computer. So, no downloads. Also, don't respond to the old crap story about you've inherited money from a long lost relative in Timbuktu, we need your account no to make the transaction. These people will usually go by the title Barron or the like such all looking to funnel your accounts.

Delete and place on spam, mam or sir. Hope that helps.