ChatGPT SearchSep 17, 2026
Thunderbird — particularly compelling if you want a free, open-source desktop client, extensive account control, and Linux support.
Data as of Oct 14, 2026Based on 24,090 AI responses
Reviewed by Dimitry Apollonsky
<1%
of 24,090 answers across Thunderbird’s markets · since Jul 5
The market map
Secure Privacy Email and MessagingMentioned in
Share of answers in Secure Privacy Email and Messaging each week · 406 answers since Jul 5
Each engine’s share of its own answers across Thunderbird’s markets · since Jul 5
Where Thunderbird ranks in AI
Question: What is the best email client?
Google AI ModeAug 24, 2026
Thunderbird (The Best Free & Open-Source ): A classic, highly customizable desktop client that doesn't track your data or lock you into a paid subscription.
Excerpts where Thunderbird appeared in the AI's answer
Thunderbird — particularly compelling if you want a free, open-source desktop client, extensive account control, and Linux support.
Thunderbird (The Best Free & Open-Source ): A classic, highly customizable desktop client that doesn't track your data or lock you into a paid subscription.