Add mail config

config.org

@@ -1016,3 +1016,63 @@
    #+begin_src emacs-lisp
      (setq backup-by-copying t)
    #+end_src
+
+* Mail
+  Using Mu4e. It requires =mu(1)= tool be set up already. The mu4e
+  emacs package is bundled with the system package rather than
+  distributed seperately, so if it's been put somewhere on the
+  [[help:load-path][load-path]] we'd just need to ~require~ it — this is the case on the
+  linux distros that I've used. On OpenBSD, though, packages are
+  installed into =/usr/local/= and =/usr/local/share/emacs/site-lisp=
+  is not in =load-path=, so we need to add it.
+
+  #+begin_src emacs-lisp
+    (when (string-match-p "OpenBSD" (shell-command-to-string  "uname -a"))
+      (add-to-list 'load-path "/usr/local/share/emacs/site-lisp"))
+    (require 'mu4e)
+  #+end_src
+
+  The folder archived mail gets saved into is determined by
+  [[help:mu4e-refile-folder][mu4e-refile-folder]]. I prefer to have archived mail stored on the
+  remote since then it's accessible from every machine. The default is
+  =/archive=, though, which is outside of any remotes. Easiest thing to
+  do is hardcode =/wip/archive= as the refile folder.
+
+  #+begin_src emacs-lisp
+    (setq mu4e-refile-folder "/wip/archive")
+  #+end_src
+
+  This only really works because I only have one email account I use
+  with Mu4e. It would archive mail from /all/ accounts onto the wip.sh
+  mail server.
+
+** Fetching
+   Use =offlineimap(1)= (also needs to be set up seperately) to sync the
+   maildir with the remote server:
+
+   #+begin_src emacs-lisp
+     (setq mu4e-get-mail-command "offlineimap")
+   #+end_src
+
+** Sending
+   To send mail we first need to set the mail address:
+
+   #+begin_src emacs-lisp
+     (setq user-mail-address "cdo@wip.sh")
+   #+end_src
+
+   Then set the sent and drafts folders to inside the remote folder:
+
+   #+begin_src emacs-lisp
+     (setq mu4e-sent-folder "/wip/sent"
+           mu4e-drafts-folder "/wip/drafts")
+   #+end_src
+
+   And finally configure SMTP:
+
+   #+begin_src emacs-lisp
+     (setq smtpmail-smtp-server "mail.wip.sh"
+           smtpmail-smtp-service 587
+           smtpmail-stream-type 'starttls
+           send-mail-function 'smtpmail-send-it)
+   #+end_src