Original author(s) Bjarni Rúnar Einarsson, Brennan Novak, Smári McCarthy[1][2]
Developer(s) The Mailpile Team
Initial release 13 September 2014 (2014-09-13)[3]
Preview release
0.5.2 / 10 August 2015 (2015-08-10)
Development status Active
Written in Python
Operating system Linux, macOS, Windows
Platform Web platform
Available in More than 14 languages[4]
Type Webmail
License Affero General Public License v3[5]

Mailpile is a webmail client with encryption and privacy features built-in. Mailpile is free and open-source software.


Mailpile is an email client with a heavy focus on providing users with encryption and privacy features by default.[6] Mailpile currently supports PGP encryption natively and stores all locally generated files in encrypted form on-disk. Its first publicly tagged release was 0.1.0 in February 2014 and included an HTML5-based interface, an original typeface (also named "Mailpile"), UI feedback of encryption and signatures, a custom search engine, integrated SPAM-filtering support, and translations to around 30 languages.[7] Mailpile released a beta version September 2014.[8]


The project ran a crowdfunding campaign on Indiegogo from August to September 2013, and successfully raised $163,192.[9][10] In the middle of the campaign PayPal froze a large portion of Mailpile's funds but was subsequently released after Mailpile took the issue public on blogs and social media platforms including Twitter.[11][12]


  1. Finley, Klint (August 26, 2013). "Open Sourcers Pitch Secure Email in Dark Age of PRISM". Wired. Retrieved March 8, 2014.
  2. "". Mailpile Team. Retrieved 2014-02-21.
  3. Mailpile Team (13 September 2014). "One Year Later: Mailpile Beta". Mailpile Blog. Retrieved 29 September 2014. External link in |website= (help)
  4. "Mailpile translation statistics". 1 September 2014. Retrieved 2014-09-13.
  5. "Licensing AGPLv3". Retrieved 8 September 2015.
  6. Finley, Klint (3 September 2014). "The Open Source Tool That Lets You Send Encrypted Emails to Anyone". Wired. Retrieved 29 September 2014.
  7. Mailpile Team (1 February 2014). "Alpha Release: Shipping Bits and Atoms". Mailpile Blog. Retrieved 21 February 2014. External link in |website= (help)
  8. Hutchinson, Lee (15 September 2014). "Mailpile enters beta—It's like Gmail, but you run it on your own computer". Ars Technica. Retrieved 29 September 2014.
  9. Lomas, Natasha (20 August 2013). "Mailpile Is A Pro-Privacy, Open Source Webmail Project That's Raised ~$100,000 On Indiegogo". TechCrunch. Retrieved 29 September 2014.
  10. "Mailpile - taking e-mail back". IndieGoGo. Retrieved 29 September 2014.
  11. Hutchinson, Lee (5 September 2013). "PayPal freezes $45,000 of Mailpile's crowdfunded dollars". ArsTechnica. Retrieved 29 September 2014.
  12. Masnick, Mike (5 September 2013). "Insanity: PayPal Freezes Mailpile's Account, Demands Excessive Info To Get Access". TechDirt. Retrieved 29 September 2014.
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