← All private and encrypted email rankings

Proton Mail vs Mailbox.org: which one does AI recommend?

We asked ChatGPT, Gemini and Perplexity 10 questions buyers ask about private and encrypted email — 30 answers in total — and counted who got named. Proton Mail is named in 26 of 30 answers (87%); Mailbox.org in 13 (43%).

Proton Mail

87%

named in 26 of 30 answers

ChatGPT: named in 100% of answers

Gemini: named in 60% of answers

Perplexity: named in 100% of answers

Mailbox.org

43%

named in 13 of 30 answers

How they rank against everyone else

Proton Mail

87%

Tuta Mail

73%

Mailbox.org

43%

Mailfence

27%

Fastmail

23%

Gmail

23%

Posteo

23%

Outlook

20%

Where does your product land?

Same 10 questions, your product, about a minute. No account.

Counts are mentions in AI answers, not endorsements, measured 2026-09-20. Nobody pays to appear.