View source for Enigmail

{{short description|Extension for Mozilla Thunderbird and SeaMonkey}}
{{Infobox software
| logo = Enigmail logo 2018.svg
| screenshot = Thunderbird and Enigmail (screenshot).png
| caption = Signed and encrypted email with Mozilla Thunderbird and Enigmail
| collapsible = 
| author = 
| developer = Ramalingam Saravanan (2001-2003)
Patrick Brunschwig (2003-present)
| released = {{Start date|2009|11|30}}
| programming language = JavaScript<ref>{{cite web |url=https://www.openhub.net/p/enigmail | title=Описание проекта на Open Hub}}</ref>
| platform = 
| size = 
| language = 
| genre = Cryptography
| license = [[Mozilla Public License|MPL 2.0]]<ref>{{cite web | url=https://www.enigmail.net/index.php/en/documentation/license-information | title=Enigmail - License Information | access-date=2016-02-25}}</ref>
| website = {{URL|https://enigmail.net}}
}}
'''Enigmail''' is a [[data encryption]] and decryption [[Add-on (Mozilla)|extension]] for [[Mozilla Thunderbird]] and the [[Postbox (email client)|Postbox]] that provides [[Pretty Good Privacy#OpenPGP|OpenPGP]] [[Public-key cryptography|public key]] e-mail encryption and signing. Enigmail works under [[Microsoft Windows]], [[Unix-like]], and [[Mac OS X]] [[operating system]]s. Enigmail can operate with other mail clients compatible with PGP/MIME and inline PGP such as: [[Microsoft Outlook]] with [[:en:Gpg4win|Gpg4win]] package installed, [[Evolution (software)|Gnome Evolution]], [[Kontact#E-Mail|KMail]], [[Claws Mail]], [[Gnus]], [[Mutt (email client)|Mutt]]. Its [[cryptography|cryptographic]] functionality is handled by [[GNU Privacy Guard]].

In their default configuration, Thunderbird and SeaMonkey provide e-mail encryption and signing using [[S/MIME]], which relies on [[X.509]] keys provided by a centralised [[certificate authority]]. Enigmail adds an alternative mechanism where cooperating users can instead use keys provided by a [[web of trust]], which relies on multiple users to endorse the authenticity of the sender's and recipient's credentials. In principle this enhances security, since it does not rely on a centralised entity which might be compromised by security failures or engage in malpractice due to commercial interests or pressure from the jurisdiction in which it resides.

Enigmail was first released in 2001 by Ramalingam Saravanan, and since 2003 maintained by Patrick Brunschwig. Both Enigmail and GNU Privacy Guard are [[Free Software|free]], [[open-source software]].  Enigmail with Thunderbird is now the most popular PGP setup.<ref>{{cite web|last=Lee|first=Micah|title=Encryption Works: How to Protect Your Privacy in the Age of NSA Surveillance|url=https://pressfreedomfoundation.org/encryption-works|publisher=Freedom of the Press Foundation|access-date=1 May 2014|date=July 2, 2013}}</ref>

Enigmail has announced its support for the new "[[pretty Easy privacy]]" (p≡p) encryption scheme in a joint Thunderbird extension to be released in December 2015.<ref>{{cite web|title=Enigmail and p≡p are partnering|url=https://www.enigmail.net/index.php/en/home/news/29-enigmail-pep|date=2015-09-07}}</ref> As of June 2016 the FAQ note it will be available in Q3 2016.<ref>{{Cite web |url=https://prettyeasyprivacy.com/faq/ |title=P≡p - pretty Easy privacy |access-date=2016-07-03 |archive-url=https://web.archive.org/web/20160705121943/https://prettyeasyprivacy.com/faq/ |archive-date=2016-07-05 |url-status=dead }}</ref>

Enigmail also supports [[Autocrypt]] exchange of cryptographic keys since version 2.0.<ref>{{cite web|title=Enigmail - 2018-03-25 Enigmail v2.0 released|url=https://enigmail.net/index.php/en/home/news/63-2018-03-25-enigmail-v2-0-released}}</ref>

In October 2019, the developers of Thunderbird announced built-in support for encryption and signing based on OpenPGP Thunderbird 78 to replace the Enigmail add-on.<ref>{{cite web|author=Ryan Sipes |title=Thunderbird, Enigmail and OpenPGP| url=https://blog.thunderbird.net/2019/10/thunderbird-enigmail-and-openpgp| publisher=Mozilla| access-date=July 5, 2020| date=October 8, 2019}}</ref> The background is a change in the code base of Thunderbird, removing support for legacy add-ons. Since this would require a rewrite from scratch for Enigmail, Patrick Brunschwig instead supports the Thunderbird team in a native implementation in Thunderbird. Enigmail will be maintained for Thunderbird 68 until 6 months after the release of Thunderbird 78. The support of Enigmail for [[Postbox (email client)|Postbox]] will be unaffected.<ref>{{cite web | url=https://enigmail.net/en/home/news/70-2019-10-08-future-openpgp-support-in-thunderbird | author=Patrick Brunschwig | title=Enigmail - 2019-10-08 Future OpenPGP Support in Thunderbird | publisher=The Enigmail Project | access-date=July 30, 2020 | date=October 8, 2019 }}{{Dead link|date=March 2024 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>

==See also==
{{Portal|Free and open-source software}}
*[[GNU Privacy Guard]]
*[[Pretty Good Privacy#OpenPGP|OpenPGP]]

==References==
{{Reflist}}

==External links==
{{sisterlinks |wikt=no |n=no |q=no |s=no |voy=no}}
*{{Official website|https://enigmail.net}}

<!--<sub><sup>{{[[Temple in Jerusalem| ]]<ref>''
=====<u><s>[[Temple in Jerusalem| ]]</s></u>=====
''</ref>}}</sup></sub>-->{{Cryptographic software}}

[[Category:Cryptographic software]]
[[Category:Thunderbird WebExtensions]]
[[Category:OpenPGP]]
[[Category:Free email software]]
[[Category:MacOS security software]]
[[Category:Windows security software]]
[[Category:Unix security software]]
[[Category:MacOS Internet software]]
[[Category:Windows Internet software]]
[[Category:Unix Internet software]]
[[Category:Cross-platform free software]]


{{Crypto-stub}}