MailTags from http://www.indev.ca can provide you with a number of ways to tag messages in Mail.
You are not going to get a lot of love out of Apple's mail.app otherwise.
Add more flags to Mail OSX client
MailTags from http://www.indev.ca can provide you with a number of ways to tag messages in Mail.
You are not going to get a lot of love out of Apple's mail.app otherwise.