Dropbox spam is often a phishing scam trying to steal your username and password, or a malware attack with a dangerous link or attachment. Never download files or click links in such emails. If you need check your online Dropbox (or any other) account, always type the URL you know and trust into your browser.
We're blocking several variations of Dropbox spam this week with links that redirect you to dangerous websites, including Google Drive and Dropbox phishing scams trying to steal your username and password, as well as a Facebook-like dating site. Get more info and examples.