As of May 2026, Apple's devices using client Mail Privacy Protection (MPP), which hides iOS, iPadOS, and macOS devices for privacy purposes, were the most popular on the global market - making up a share of percent of opens during the year. The Gmail client ranked second, with around percent of e-mail opens in 2026, while Outlook ranked third with approximately **** percent of the total global e-mail opens.
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Litmus. (June 17, 2026). Market share of the most used e-mail clients as of May 2026 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 22, 2026, from /statistics/265816/most-used-e-mail-service-by-market-share/
Litmus. "Market share of the most used e-mail clients as of May 2026." Chart. June 17, 2026. ÌÇÐÄÆƽâ°æ. Accessed July 22, 2026. /statistics/265816/most-used-e-mail-service-by-market-share/
Litmus. (2026). Market share of the most used e-mail clients as of May 2026. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 22, 2026. /statistics/265816/most-used-e-mail-service-by-market-share/
Litmus. "Market Share of The Most Used E-mail Clients as of May 2026." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 17 Jun 2026, /statistics/265816/most-used-e-mail-service-by-market-share/
Litmus, Market share of the most used e-mail clients as of May 2026 ÌÇÐÄÆƽâ°æ, /statistics/265816/most-used-e-mail-service-by-market-share/ (last visited July 22, 2026)
Market share of the most used e-mail clients as of May 2026 [Graph], Litmus, June 17, 2026. [Online]. Available: /statistics/265816/most-used-e-mail-service-by-market-share/
