linux邮件配置

1. 非加密邮件配置

cat <<'EOF' > smtp.sh
#!/bin/bash
provider=qq
account=3282941991
password=zqdtygmmndsgb22i3ee
echo "Waiting For A Moment..."
rpm -qa sendmail &> /dev/null|| yum install sendmail -y >/dev/null
echo "
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
" >> /etc/mail.rc
systemctl restart sendmail
EOFbash smtp.sh

2. 加密邮件配置

cat <<'EOF' > ssl_smtps.sh
#!/bin/bash
provider=qq
account=3282941991
password=zqdtygmmndsg3b3iee1
echo "Waiting For A Moment..."
rpm -qa sendmail &> /dev/null|| yum install sendmail -y &> /dev/null
dir=/root/.certs/
mkdir -p $dir  #从这里开始，均为下载ssl证书及相关配置#
echo -n | openssl s_client -connect smtp.$provider.com:465 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > $dir$provider.crtcertutil -A -n "GeoTrust SSL CA" -t "C,," -d ~/.certs -i $dir$provider.crt >/dev/null
certutil -A -n "GeoTrust Global CA" -t "C,," -d ~/\.certs -i $dir$provider.crt >/dev/null
certutil -L -d $dir >/dev/null
cd $dir
certutil -A -n "GeoTrust SSL CA - G3" -t "Pu,Pu,Pu" -d ./ -i $provider.crtecho "
set from=$account@$provider.com
set smtp=smtps://smtp.$provider.com:465
set smtp-auth-user=$account@$provider.com
set smtp-auth-password=$password
set smtp-auth=login
set ssl-verify=ignore
set nss-config-dir=$dir
" >> /etc/mail.rcsystemctl restart sendmail
EOF
bash ssl_smtps.sh

3. 测试发送

echo 1|sendmail 3282941991@qq.com