The Mulberry email client was marketed by Cyrusoft from approximately

The Mulberry email client was marketed by Cyrusoft from approximately
1995 to 2005. By late 2005, Cyrusoft International/ISAMET declared
bankruptcy and went out of business. In August 2006 the original
author, Cyrus Daboo, acquired the rights to the source code. Mulberry
was then made a free software, and by 2007, Open Sourced.

> Mulberry started off life as a software project that was really
> meant to help the author learn more about the internet and internet
> protocols used for email. However, it became much more than that and
> garnered support from a small (in internet terms) group of users and
> institutions many of whom relied on the product as their primary
> email tool.
>
> Whilst it started as only an IMAP client and only on Mac OS, it has
> grown to cover not only other email protocols, but also calendaring
> and scheduling and is available on Mac OS X, Windows and Linux
> systems [ ]
>
> Now Mulberry itself is free, though its future is still cloudy in
> terms of whether development will advance or not...
>
> ? Excerpt: Mulberry "[About Us - A Brief History][1]".

* DL #1: Mulberry v1.4.2.1 (1999) in StuffIt 5x ".sit" archive.
Serial #: Use the code listed for DL #4, below.

* DL #2: Mulberry v2.0.8 (2001) in StuffIt 5x ".sit" archive.

* DL #3: Mulberry v2.1 (2001) preinstalled and Vise installer
copies, included in StuffIt 4 ".sit" archive.

* DL #4: Mulberry v2.2.1 (2002) preinstalled classic version only,
included in StuffIt 5 ".sit" archive.
Serial #: W5085527 Registration #: FBF5F079

* DL #5: Mulberry v3.1.6 (2004) Vise installer in ".bin" wrapper.

* DL #6: Mulberry v3.1.6a (2005) Vise installer in StuffIt 5.x
".sit" archive.

* DL #7: Mulberry v4.0.5 (2006) in OS X ".dmg" disk image archive.

* DL #8: Mulberry v4.0.6 (2006) in OS X ".dmg" disk image archive.

* DL #9: Mulberry v4.0.7 (2006) in OS X ".dmg" disk image archive.

* DL #10: Mulberry v4.0.8 (2007) in OS X ".dmg" disk image archive.

* Manual link above, is the for the Mulberry v2.0.8 Reference Guide
(PDF). Mulberry versions 3x & 4x include documentation in their
downloads.

For versions that are compatible with other Operating Systems: Visit
the [Mulberry website][2].

Compatibility
Architecture: 68k PPC PPC (Carbonized) x86 (Intel:Mac)

* Notes:
* Mulberry v2.0.8 (FAT) runs native on either 68k Mac or PPC. Mac OS's 7.1 to 9.2.2

* Mulberry v2.1 (FAT & Carbon) runs native on either 68k Mac or PPC, Mac OS's 7.1 to Mac OS X 10.1x
This version may require the "[Appearance Manager][3]" if running in
systems earlier than Mac OS 8.0

* Mulberry v2.2.1 (FAT) runs native on either 68k Mac or PPC, Mac OS's 7.6 to 9.2.2
As well as an English spelling checker, it now includes French &
German spelling checkers too.
This version may also require the "Appearance Manager" if running in
systems earlier than Mac OS 8.0

* Mulberry v3.1.6 and v3.1.6a are native (Carbon apps) that run on either Mac OS 9 or PPC Mac OS X.
Both require [a free registration code][4] to activate (or see pic #4,
above).

* Mulberry v4.0.5 and v4.0.6 are native PPC Mac OS X. Freeware, requiring no registration to use (only versions before 4.0.5, did).

* Mulberry v4.0.7 and v4.0.8 are Universal, PPC Mac OS X and Intel Mac native, requiring no registration to use. Version 4.0.8 is now free Open Source Software (Apache License 2.0).

I've successfully used Mulberry v2.0.8 in Basilisk II running Mac SSW
7.1.1 and Mulberry v2.1 in Mac OS 7.6.1

The development of Mulberry appears to have stalled, the final stable
released version is still at v4.0.8 (2007).
Perhaps this page can help to draw some attention towards that
project.

[1]: http://www.mulberrymail.com/about.shtml
[2]: http://www.mulberrymail.com/index.shtml
[3]: http://macintoshgarden.org/apps/appearance-manager-mac-os-7x
[4]: https://web.archive.org/web/20061209042018/http://trac.mulberrymail.com/mulberry/wiki/olderversions