You could have downloaded Rocketbox 1.0.8 for Mac from our software library for free. The program lies within Communication Tools, more precisely E-mail. This free Mac app was originally developed by Central Atomics.
From the developer:
Rocketbox helps you to search emails in Apple Mail application.
Main features:
- Advanced search support.
- Save time to manage e-mail.
- Search by person.
- Powerful filters to handle lots of e-mail.
- Inline search previews.
- User friendly interface.
You may want to check out more Mac applications, such as Zimbra Toaster, PageSender or Mail to ToDo X, which might be related to Rocketbox.