网易163免费邮箱相关server信息：
mutt 是命令行下的邮件client，它仅是管理邮件的组织编辑，邮件的发送和接收须要调用相应的程序。
这里用的各自是getmail 和 msmtp.
=====
1. 安装mutt, getmail, msmtp
======================
$ sudo yum -y install mutt getmail msmtp
2. Build Mail Dir
==================Create ~/Mail directory:
$ mkdir -m 700 ~/Mail/inbox/{,tmp,new,cur}
3. Configure getmail
=====================Reference:
$ mkdir ~/.getmail
$ cd ~/.getmail
$ vi getmailrc.163
[retriever]
type = SimplePOP3SSLRetriever
server = pop.163.com
port = 995
username = username
password = password
[destination]
type = Maildir
path = ~/Mail/inbox/
[options]
verbose = 0
# don't delete messages on server.
delete = false
# don't retrieve all available message.
read_all = false
message_log = ~/.getmail/getmail.log
4. Config ~/.msmtprc
=====================$ touch ~/.msmtprc
$ chmod 600 ~/.msmtprc
$ vi ~/.msmtprc
tls on
tls_certcheck off
tls_starttls off
auth on
host smtp.163.com
user username
from username@163.com
password password
port 465
5. add the following lines to ~/.muttrc
========================================set folder=~/Mail
mailboxes +inbox
mailboxes +linux
set sendmail="/usr/bin/msmtp"
# the mail_address name displayed on the mail list.
set from="mail_address"
set pager_stop=yes
set beep=no
set signature="~/.signature"
set copy
set edit_headers
set fast_reply
set help
set include=yes
bind index cr search-opposite
bind index cs search-next
bind pager cr search-opposite
bind pager cs search-next
bind pager er read-thread
bind index er read-thread
macro index G "!getmail -r ~/.getmail/getmailrc.163 " "Invoke getmail"
# append address to Cc.
my_hdr Cc: address
6. getmail
===========Use cron or other programs to run getmail to check out mail.
getmail command
$ getmail -r ~/.getmail/getmailrc.163
fetch the mail every two minutes.
$ crontab -e
*/2 * * * * getmail -r ~/.getmail/getmailrc.163
mailbox can't be processed in one config file. But mulitple config
file can be processed.
7. run mutt
============$ mutt -y