【ubuntu 18.04】安装sendmail

1. 官网

https://www.proofpoint.com/us/products/email-protection/open-source-email-solution

 

2. 使用qq/163/126免费个人邮箱，申请获取授权码

 

3. smtp 非ssl

#!/bin/bash
read -p "Please Input Your Email Provider [163/qq/126]: " provider   #通过read方式获得相关变量
read -p "Please Input Your Email Account: " account
read -p "Please Input Your Auth-Password: " password
echo "Waiting For A Moment..."
sudo apt install mailutils sendmail -y >/dev/null0
cat >>/etc/mail.rc<< EOF
set from=$account@$provider.com   #邮箱地址
set smtp=smtp.$provider.com     #smtp服务器
set smtp-auth-user=$account    #邮箱账号
set smtp-auth-password=$password   #授权密码，注意是授权密码，不是在web页面上登邮箱的密码，授权密码可以在邮箱的pop3/smtp设置页面自行设置。
set smtp-auth=login
EOF
sudo systemctl start sendmail

测试

# echo 'test' | mail -s 'test' xxxxxx@xxx.com

4. smtp  ssl配置

#!/bin/bash
read -p "Please Input Your Email Provider [163/qq/126]: " provider
read -p "Please Input Your Email Account: " account
read -p "Please Input Your Auth-Password: " password
echo "Waiting For A Moment..."
sudo apt-get install mailutils sendmail -y >/dev/null
mkdir -p /root/.certs/  #从这里开始，均为下载ssl证书及相关配置#
echo -n | openssl s_client -connect smtp.$provider.com:465 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > ~/.certs/$provider.crt >/dev/null
certutil -A -n "GeoTrust SSL CA" -t "C,," -d ~/.certs -i ~/.certs/$provider.crt >/dev/null
certutil -A -n "GeoTrust Global CA" -t "C,," -d ~/.certs -i ~/.certs/$provider.crt >/dev/null
certutil -L -d /root/.certs >/dev/null
cat >>/etc/mail.rc<< EOF #以下为邮箱账户相关配置#
set from=$account@$provider.com
set smtp=smtps://smtp.$provider.com:465
set smtp-auth-user=$account@$provider.com
set smtp-auth-password=$password
set smtp-auth=login
set ssl-verify=ignore
set nss-config-dir=/root/.certs"
EOF
sudo systemctl start sendmail

测试

# echo 'test' | mail -s 'test' xxxxxx@xxx.com

 

参考文章：https://tecadmin.net/install-sendmail-on-ubuntu/