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K-9 Mail

Open Source Email for Android

K-9 Mail is the leading open source email app on Android. K-9 is now part of the Mozilla Thunderbird family of projects focused on open standards, powerful features and user privacy. K-9 is free to all users. By contributing you’ll help ensure it stays that way and support future development. Will you give today?

Contributions are not tax-deductible as charitable contributions.