Release candidate builds (rc1) for Thunderbird 1.5.0.13 are now available here:
http://ftp.mozilla.org/pub/mozilla.org/thunderbird/nightly/1.5.0.13-cand...
As always we appreciate your help testing these builds and sending us feedback.
Several new forums for submitting and discussing feedback around release candidates and alphas have been created. You can read the feedback and participate in one of three ways:
a) Join the Mailing List - Use feedback-firefox-prerelease (and/or feedback-thunderbird-prerelease) @ https://lists.mozilla.org/listinfo.
b) Online News Reading - Use http://groups.google.com/group/mozilla.feedback.firefox.prerelease (and/or http://groups.google.com/group/mozilla.feedback.thunderbird.prerelease)
c) Dedicated news reader - Subscribe to mozilla.feedback.firefox.prerelease (and/or mozilla.feedback.thunderbird.prerelease) on news.mozilla.org.