Why are SekChek's ZIP files being stripped from my emails?

The most likely reason is that your anti-virus software or firewall machine is configured to quarantine or strip all encrypted ZIP files.

The recommended solution is to encrypt your Scan file using SekChek's Public/Private Key encryption option. This will generate an SCK file that will pass through your firewall without interference.

You can turn on this option by enabling the 'Use Public Key Encryption' checkbox on the Options Menu.