Global e-mail client market share 2024
As of March 2024, 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 55 percent opens during the year. The Gmail client ranked second, with around 30.57 percent of e-mail opens in 2024, while Outlook ranked third with approximately four percent of the total global e-mail opens.