Mozilla Thunderbird 1.5 Release Candidate 1 for OS/2 & eCS has been
released.  New in 1.5 RC1 is support for saved search folders that can
search across multiple accounts, and support for message threads for
single folder saved search folders.  This release also includes several
bug fixes since 1.5b2.

Features include:

 * Spell check as you type.
 * Automated update to streamline product upgrades.
 * Built in phishing detector to help protect users against email scams.
 * Podcasting and other RSS Improvements.
 * Deleting attachments from messages.
 * Integration with server side spam filtering.
 * Reply and forward actions for message filters.
 * Kerberos Authentication.
 * Auto save as draft for mail composition.
 * Improvements to product usability including redesigned options UI,
   search and filter UI, and SMTP server management. * Filters for Global
   Inbox.
* Many security enhancements

You can download it here:

http://ftp.mozilla.org/pub/mozilla.org/thunderbird/releases/1.5rc1/contrib/thunderbird-1.5rc1.en-US.os2.zip

NOTE:  This release requires C runtime DLLs  from Innotek.  The latest
version is 0.5.1, which includes an installer.  Available here:

http://download.innotek.de/gccos2/runtime/libc-0.5.1.exe

Thunderbird extensions (add-ons) that add new functionality are available
here:

https://addons.update.mozilla.org/extensions/?application=thunderbird

Thunderbird themes (skins) are available here:

https://addons.update.mozilla.org/themes/?application=thunderbird

For more information on the Thunderbird e-mail and newsgroup client:

http://www.mozilla.org/products/thunderbird/

For a list of what's new in this release:

http://www.mozilla.org/products/thunderbird/releases/1.5.html

The unofficial "What's new in Thunderbird" page is here (select the
month):

http://weblogs.mozillazine.org/rumblingedge/archives/2005/

Tips and tricks for Thunderbird can be found here:

http://www.mozilla.org/support/thunderbird/tips

And finally, if you still have questions, or just want to participate in a
Mozilla for OS/2 discussion forum, the Warpzilla newsgroup can be found
here:

news://news.mozilla.org/netscape.public.mozilla.os2

Regards, 
Sander Nyman