What you need to run Postbox
Windows- Windows XP SP2, Windows Vista, and Windows 7 *
- 1.5 Ghz Pentium 4 or comparable
- At least 2 GB of RAM
- At least 200 MB of available space on your hard drive (large email accounts may require more space for indexing)
* Only 32-bit versions of Postbox are supported on Windows at this time.
Macintosh- Mac OS X 10.6 and later
- Intel Core processor family capable of running 64-bit applications *
- At least 2 GB of RAM
- At least 200 MB of available space on your hard drive (large email accounts may require more space for indexing)
* If you cannot run 64-bit applications, a 32-bit version of Postbox 2.1.4 can be found here.