Check the file before you run it. Every build is listed here with its exact name, size and SHA-256.
A code signature tells you who built a file. A hash tells you that the file on your disk is byte for byte the one we released, which is the part that actually protects you from a tampered download. Run this in PowerShell and compare the result to the table below.
v2.1
Not yet published. The hash is generated when the Windows build is produced and appears here before the download link does. If you are looking at a Phonelint download that is not listed on this page, do not run it.
Validation runs entirely against the numbering-plan data shipped inside the app. There is no server to send a list to, which is the whole reason the product exists.