The core functionality of a mail access checker is to take a list of usernames and passwords (often called a "combo list") and test them against mail server protocols. The software automates logins to determine which credential pairs are valid. Supported Protocols
With access to an email account, attackers can often piece together enough personal information—bank statements, bills, tax documents, and identification scans—to commit full‑scale identity theft. They can change passwords on linked accounts, initiate fraudulent wire transfers, or apply for credit lines in the victim's name. HackUs Mail Access Checker.zip