mutt elm 邮件

https://wiki.archlinux.org/index.php/Mutt_%28%E6%AD%A3%E9%AB%94%E4%B8%AD%E6%96%87%29

http://docs.huihoo.com/homepage/shredderyin/mutt_frame.html

http://linux.sheup.com/linux/4/31040.html