Download of MailTags 5.1.8 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This Mac app was originally produced by indev.
The application is also known as "Install MailTags For Snow Leopard", "Install MailTags", "Uninstall MailTags". The application belongs to Communication Tools. Mailtags3current.dmg is the most frequent filename for this program's installer. The following versions: 3.1, 2.6 and 1.0 are the most frequently downloaded ones by the program users. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
With MailTags installed, you can add comments, due dates, projects and priority to your messages right inside your mail viewer window. You can then use this metadata as the basis for Spotlight searches, Smart Mailboxes, and Mail Rules. For example, you can create a Smart Mailbox that will show you all messages in project: "Great Novel" that have a due date in the next three days.
You may want to check out more Mac applications, such as SmallCubed MailSuite, which might be related to MailTags.