Be extremely careful when sourcing this tool. Many fake versions contain remote access trojans (RATs) or keyloggers.
Security software often flags checkers as "Riskware" or "PUP" (Potentially Unwanted Programs). You may need to add the folder to your list to prevent the .exe from being deleted upon launch. Key Features of V2 mail access checker by xrisky v2 install
If you have already executed the file, immediately change your sensitive passwords (banking, email, work accounts) from a separate, clean device. Be extremely careful when sourcing this tool