centos7配置mailx

#1 安装mailx
yum -y install sendmail mailx libreport-plugin-mailx sharutils mutt
#2 修改配置文件/etc/mail.rc，最后添加以下几行
# set sendmail
set from=abc@xxx.com
set smtp=smtps://smtp.exmail.qq.com:465
set smtp-auth-user=abc@xxx.com
set smtp-auth-password=xxx
set smtp-auth=login
set nss-config-dir=/etc/pki/nssdb/
set ssl-verify=ignore

#3 设置证书
cd /etc/pki/nssdb
#获取证书文件
echo -n | openssl s_client -connect smtp.exmail.qq.com:465 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > ./qq.crt
#添加证书到证书数据库中
certutil -A -n "GeoTrust SSL CA - G3" -t "Pu,Pu,Pu"  -d ./ -i qq.crt

#4 测试邮件发送
echo "Hello World" |mail -s test xxx@xxx.com
#-s :指定发送邮件的主题
#将以"hello world"为内容，test为主题的邮件，发送给xxx@xxx.com
#5 添加附件测试
echo "Hello World" |mail -s test -a /etc/fujian.txt allenwu@hinabian.com
#将以"hello world"为内容，test为主题，/etc/fujian.txt为附件的邮件，发送给xxx@xxx.com

#6 将文件内容，作为邮件内容发送给指定邮箱
mail -s test -a /etc/fujian.txt allenwu@hinabian.com </etc/passwd