What's New For Testing in Alpha 1

    * Phishing Detector --> Examines the contents of an e-mail message and warns you with a status bar along the top of the message if Thunderbird thinks this message is a phishing attack.
    * Spell As You Type for Mail Compose. (Enabled by Default)
    * Support for deleting and stripping attachments from e-mail.
    * Improved RSS Support --> Including podcasting, a new feed subscription UI, OPML import (export will be added in Alpha 2)
    * Re-designed Options Dialog
    * Improved UI under Account Settings for managing multiple SMTP accounts. If you have an account with multiple identities, you can even configure an SMTP server for each identity.
    * An Improved Spell Check Engine
    * Auto Save As Draft for mail composition.
    * Advanced hackers now have direct access to about:config for pref hacking (Tools / Options / Advanced / Config Editor)
    * Mailing lists in the address book now use LDAP during autocomplete if you are using LDAP.
    * Offline Improvements
    * Ability to have global inbox filters
    * Ability to copy local folders to imap servers
    * TLS Support for POP3
    * Support for Network timeouts for IMAP, POP3 and SMTP
    * Search and Filter Improvements (including the ability to create views or search/filter on flagged messages).
    * Many bug fixes and other improvements.

Known Issues
Since this is an alpha release, there will be many more issues and bugs than you would find in a finished release like 1.0 was or eventually, 1.1 final. Here are some of the more noticeable ones:

    * In the new Options dialog, several menulist options cannot be changed including: The ability to change the addressbook we add outgoing messages to and the address book used to allow remote images.
    * Windows users cannot paste images from the clipboard into the compose window like you can in 1.0. This feature will get added to 1.1 before 1.1 final.