#+TITLE: guile-email

guile-email is a collection of email utilities implemented in pure
guile. It supports parsing MIME (Multipurpose Internet Mail
Extensions) compliant email messages and reading emails from the mbox
format.

guile-email is used by

- [[https://git.elephly.net/software/mumi.git][mumi]], a web interface to the [[https://www.debian.org/Bugs/][Debbugs]] bug tracker. Mumi is primarily
  used by [[https://www.gnu.org/software/guix/][the Guix project]] at https://issues.guix.info.
- the Guix data service, also used by the Guix project

* Features

- Parse [[https://tools.ietf.org/html/rfc5322][RFC5322]] compliant email messages (currently does not support
  [[https://tools.ietf.org/html/rfc5322#section-4][obsolete syntax]])
- Parse MIME compliant email messages as specified in [[https://tools.ietf.org/html/rfc2045][RFC2045]],
  [[https://tools.ietf.org/html/rfc2046][RFC2046]], [[https://tools.ietf.org/html/rfc2047][RFC2047]] and [[https://tools.ietf.org/html/rfc2049][RFC2049]]
- Parse non-standard [[https://www.gnu.org/software/emacs/manual/html_node/emacs/Mail-Headers.html][Emacs message mode parens style addresses]]
- Encode and decode Quoted-Printable encoding, Base64 encoding and
  Q-encoding
- Read emails from the [[https://en.wikipedia.org/wiki/Mbox][mbox format]]

* Download

[[https://repology.org/badge/vertical-allrepos/guile-email.svg]]

Download release tarballs.

- 2019-12-22 [[https://guile-email.systemreboot.net/releases/guile-email-0.2.2.tar.lz][guile-email-0.2.2.tar.lz]] [[https://guile-email.systemreboot.net/releases/guile-email-0.2.2.tar.lz.asc][GPG Signature]]
- 2019-09-23 [[https://guile-email.systemreboot.net/releases/guile-email-0.2.1.tar.lz][guile-email-0.2.1.tar.lz]] [[https://guile-email.systemreboot.net/releases/guile-email-0.2.1.tar.lz.asc][GPG Signature]]
- 2019-08-09 [[https://guile-email.systemreboot.net/releases/guile-email-0.2.0.tar.lz][guile-email-0.2.0.tar.lz]] [[https://guile-email.systemreboot.net/releases/guile-email-0.2.0.tar.lz.asc][GPG Signature]]

Download [[https://systemreboot.net/files/misc/arunisaac.pub][public signing key]].

Browse the [[https://git.systemreboot.net/guile-email][development version]] of guile-email hosted in a git
repository.

* Documentation

[[https://guile-email.systemreboot.net/manual/dev/en/][Documentation for guile-email]] is available online. If guile-email is
installed on your machine, you may also read the manual using your
info browser.

* Future work

- Support obsolete syntax as specified in RFC5322
- Support MIME parameter value and encoded word extensions specified
  in RFC2231
- Support decoding PGP encrypted/signed messages
- Support email generation

* Contributing

Feedback, suggestions, feature requests, bug reports and patches are
all welcome. Please write to the public inbox at
[[mailto:guile-email@systemreboot.net][guile-email@systemreboot.net]]. You may also [[https://lists.systemreboot.net/guile-email/new.atom][subscribe]] to the public
inbox or browse the [[https://lists.systemreboot.net/guile-email][archives]] of previous discussions.

* License

guile-email is free software released under the terms of the [[https://www.gnu.org/licenses/agpl.html][GNU
Affero General Public License]], either version 3 of the License, or
(at your option) any later version.