Notes on using MailEnableHook:

1. Before conversion, verify the following:
1. Config.IsInstalled == true (If not, cannot perform conversion)
2. Config.IsTabDelimited == true (If not, cannot perform conversion)
3. Config.IsEncrypted == false (If so, display the message contained in "Encrypted.txt" to the user)
2. Perform an initial data load to ensure there is information to convert
1. PostOffice[] postoffices = PostOffice.GetAll(); // postoffices should contain at least one item