MailTags lets you add comments, due dates, notes and ratings priority projects to your messages, all without leaving your inbox.
MailTags is a full complement of features for Apple Mail:
Integrated Interface: Add keywords marked, project notes and ratings priorities through a convenient side panel.
iCal supportCreate each and synchronized events directly from iCal Mail.
IMAP support: Synchronize your labels with your IMAP server to access multiple computers.
Display useful list: Display your tags in extra columns in your message list to keep track of expiration dates as they approach.
Customize mail rules: create intelligent automatic labeling rules for new messages.
Email integration search: Search your tags in the search field mail. Narrow search by keywords, projects or notes.
Integration of Smart Mailboxes: create Smart Mailboxes to search your messages for keywords, projects and due dates.
Supports AppleScript workflows created AppleScript to access MailTags data for use in other applications.