: Sandboxed analysis of files named Aliexpress-Valid-Mail-Checker.zip has resulted in a Malicious Activity verdict.
Legitimate email checkers are used to verify the deliverability of email addresses without sending an actual message. They are standard tools for digital marketers to maintain clean contact lists and protect their sender reputation.
: These tools typically perform syntax checking, domain verification (MX record lookups), and SMTP "pings" to see if a mailbox exists.