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Mailjet is a French email marketing platform founded in 2010. Mailjet is a cloud-based email delivery and tracking system which allows users to send marketing emails and transactional emails.[1]


Mailjet was founded in 2010 by Wilfried Durand and Julien Tartarin in Nantes, France through startup studio eFounders.[2][3] Mailjet's platform includes tools to design emails, send high volumes, and track emails. The platform utilizes tools to ensure the deliverability of emails, including managing sender reputation and provision of authentication certificates.[4] Mailjet claims to be GDPR compliant and can be integrated with different CMS and e-commerce platforms.[4]

In 2011, the company raised €2.5 million from Alven Capital. In 2014, Mailjet raised an additional €2.2 million from Alven Capital through eFounders[5] and opened offices in New York, London, and Berlin.[1]

By 2015, Mailjet had more than 32,000 customers and raised another $11 million from Alven Capital, Iris Capital and Seventure Partners.[6][3]

In October 2019, Mailjet was acquired by the U.S. email marketing platform Mailgun, which is backed by Thoma Bravo.[7][8]

In December 2021, Mailjet was acquired again, this time by the Swedish company Sinch.[9]


  1. ^ a b Ronfaut, Lucie (2015-07-15). "Mailjet lève 10 millions d'euros pour aider les entreprises à envoyer des emails". Le Figaro.fr (in French). Retrieved 2020-11-06.
  2. ^ "L'américain Mailgun s'empare de son concurrent européen Mailjet". Capital Finance (in French). 2019-10-23. Retrieved 2020-11-06.
  3. ^ a b "eFounders accélère avec 5 M€". Capital Finance (in French). 2016-12-08. Retrieved 2020-11-06.
  4. ^ a b "Mailjet : analyse de l'outil d'e-mailing marketing collaboratif". ECN (in French). Retrieved 2020-11-06.
  5. ^ "Mailjet engrange 2,2 M€ supplémentaires". Capital Finance (in French). 2014-03-24. Retrieved 2020-11-06.
  6. ^ "Mailjet Raises Another $11 Million To Scale Its Unified Marketing And Transactional Email Service". TechCrunch. Retrieved 2020-11-06.
  7. ^ October 2019, Anthony Spadafora 22. "Mailgun acquires Mailjet to expand its end-to-end email platform". TechRadar. Retrieved 2020-11-06.
  8. ^ Bossi, Paolo. "Mailgun's Acquisition of Mailjet – Global Legal Chronicle". Retrieved 2020-11-06.
  9. ^ Conway, William, Mailjet joins Sinch: The future of customer communications is here, mailjet Blogpost December 7 2021,https://www.mailjet.com/blog/company/mailjet-joins-sinch/