To create your own custom cover sheet, simply use your favourite word processor to make a document.
Make sure that the words 'machylafaxfrom', 'machylafaxto', 'machylafaxdate', 'machylafaxsubject' and 'machylafaxcomments' appear in the text
Once you are done, save your document in Rich Text Format (RTF). In MacHylafax, go to your preferences and click 'Cover Pages'. Click '+' and select your RTF file.
It is possible that MacHylafax does not have permission to access your Contacts. Please try the following from Terminal to reset permissions 'tccutil reset AddressBook'. You will be prompted to give permission the next time you launch MacHylafax or any other
applications that attempts to access your Contacts.