[Mahn]

I keep using Thunderbird because I haven't found anything better, but it's unbearably slow. I'd gladly jump ship to a better cross platform, featureful, responsive email client, but apparently they don't make these anymore.

[qudat]

There’s no money in email clients.

[rajaindia333]

There is actually. They sell at least the following three email clients: 1. Incredimail 2. The Bat 3. Outlook

[everybodyknows]

The sad truth. Likewise Linux desktops.