There's been so many bitcoin site hacks over the years that if you've been in it long enough it's all but guaranteed you have an email on a list somewhere.  If you're lucky, you used a throw-away/spam only address.  MtGox and Bitstamp both had database compromises that at the very least dumped a complete list of all their users emails on multiple occasions.

Just be careful about opening attachments as usual (aka: don't do it).  I probably get about a dozen a week with .jar files attached pretending to be invoices/miner screenshots.

if i received some emails hose likely a phising attempt, just report it to google as spam
be careful with that, many people lose their bitcoin after open email's attachment from unknown sender