While its been a long time since Ive used Thunderbird, I just wanted to take the time to publicly say thank you.
Many HNers probably wont (or cant) remember the world of desktop mail clients but basically during the height of MSFT dominance there was only one real mail client: Outlook. Which Microsoft was starting to monetize heavily, ignore UX, and keep it windows only (cant blame them for that).
Then Thunderbird arrived on the scene, an OSS mail client that beat the pants off of Outlook in features, spam detection, IMAP support and a bunch of other things.
And it was free.
And you could use it on any machine.
This was a huge moment for OSS.
We owe a lot of credit to Mozilla and Thunderbird for rescuing us from a closed source world.