--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mail.rst	Fri Jun 01 00:13:23 2012 +0300
@@ -0,0 +1,102 @@
+.. -*- coding: utf-8; -*-
+
+=======
+ Mail.
+=======
+
+Message headers fields.
+=======================
+::
+
+  from            =       "From:" mailbox-list CRLF
+  sender          =       "Sender:" mailbox CRLF
+  reply-to        =       "Reply-To:" address-list CRLF
+
+  to              =       "To:" address-list CRLF
+  cc              =       "Cc:" address-list CRLF
+  bcc             =       "Bcc:" (address-list / [CFWS]) CRLF
+  newsgroups
+
+  http://tools.ietf.org/rfc//rfc2076.txt
+                Common Internet Message Headers, Informational
+  http://tools.ietf.org/rfc/rfc2822.txt
+                Internet Message Format, Standard Track
+  http://tools.ietf.org/rfc/rfc2821.txt
+                Simple Mail Transfer Protocol, Standard Track
+
+Sending mail with ssmtp.
+========================
+::
+
+  $ cat /etc/ssmtp/ssmtp.conf
+  Mailhub=smtp.gmail.com:587
+  FromLineOverride=YES
+  UseSTARTTLS=yes
+  AuthUser=gavenkoa
+  AuthPass=XXXXXX
+
+Sending email via gmail in emacs.
+=================================
+::
+
+  ; install starttls from here (no need for patch)
+  ; http://josefsson.org/emacs-smtp-starttls.html
+
+  (setq send-mail-function 'smtpmail-send-it
+     message-send-mail-function 'smtpmail-send-it
+     smtpmail-starttls-credentials
+     '(("smtp.gmail.com" 587 nil nil))
+     smtpmail-auth-credentials
+     (expand-file-name "~/.authinfo")
+     smtpmail-default-smtp-server "smtp.gmail.com"
+     smtpmail-smtp-server "smtp.gmail.com"
+     smtpmail-smtp-service 587
+     smtpmail-debug-info t
+     starttls-extra-arguments nil
+     smtpmail-warn-about-unknown-extensions t
+     starttls-use-gnutls nil)
+
+Update ``~/..authinfo``::
+
+  machine smtp.gmail.com login [your name]@gmail.com password [your password]
+
+And finally download, unzip, make and install startttls::
+
+  http://josefsson.org/emacs-smtp-starttls.html
+
+ * http://justinsboringpage.blogspot.com/2009/02/sending-email-via-gmail-in-emacs.html
+ * http://obfuscatedcode.wordpress.com/2007/04/26/configuring-emacs-for-gmails-smtp
+
+Mail etiquette.
+===============
+
+Bottom vs. top quoting.
+-----------------------
+
+Just not use top quoting!
+
+Stallman warn about Google.
+---------------------------
+
+  http://www.mail-archive.com/gnu-emacs-sources@gnu.org/msg00302.html
+
+Storage format for email.
+=========================
+
+mbox.
+-----
+
+  http://tools.ietf.org/html/rfc4155
+                The application/mbox Media Type (Category: Informational)
+  http://en.wikipedia.org/wiki/Mbox
+
+maildir.
+--------
+
+  http://en.wikipedia.org/wiki/Maildir
+
+MH mailbox format.
+------------------
+
+  http://en.wikipedia.org/wiki/MH_Message_Handling_System
+