一个mutt的完美解决方案

.muttrc
set envelope_from=yes
set sendmail="/usr/bin/esmtp -v -X $HOME/.esmtplog"
my_hdr From:cyr
my_hdr Reply-To:cyr


.esmtprc
###     This file is auto-generated using debconf on install.     ###
###     Any changes made will be overwritten on next upgrade.     ###
#
# Config file for ESMTP sendmail

# The SMTP host and service (port)
hostname=smtp.163.com:25

# The user name
username="ccyynn"

# The password
password="****"

# Whether to use Starttls
#starttls=disabled

# The certificate passphrase
#certificate_passphrase=

# The Mail Delivery Agent
mda="/usr/bin/procmail -d %T"

.fetchmailrc
defaults
mda "/usr/bin/esmtp -f %F %T"
poll pop3.163.com
protocol POP3
user "ccyynn"
password "****"
keep

注意：有可能要安装esmtp-run