Mozilla Thunderbird for Mac Mac

What's new in Thunderbird 1.5:

-Automated update to streamline product upgrades. Notification of an update is more prominent, and updates to Thunderbird may now be half a megabyte or smaller. Updating extensions has also improved.
-Sort address autocomplete results by how often you send e-mail to each recipient.
-Spell check as you type.
-Saved Search Folders can now search across multiple accounts.
-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.
-Message aging.
-Filters for Global Inbox.
-Improvements to product usability including redesigned options interface, and SMTP server management.
-Many security enhancements.