[Greg Jones]

I believe all 4 will need to match. The MailTags keyword is not referenced in the script, but OmniFocus does evaluate imported emails and will assign a task a context based on an exact match with a MailTags keyword. I just tried adding a '@waiting' tagged email using the script and it does not import to OmniFocus. I changed the keyword to 'waiting' and ran the script again and it works.