Download Thunderbird 3.1.8 - 9.03MB (Open Source) by Mozilla Organization

Download Thunderbird 3.1.8
Thunderbird is a marvelous email client.

Feature Sets:
Powerful quick search
Saved search folders
Advanced message filtering, message grouping, labels, return receipts
Multiple e-mail and newsgroup accounts
Support for HTML mail
Lightning fast search
An Archive feature similar to the one in GMail
IMAP/POP support
Smart folders
Tabbed email
Smart address book LDAP address completion, import tools, and the ability to manage!!!!