linxu mail发邮件

安装sendmail：yum install -y sendmail

2.安装mail：yum install -y mailx

3.安装mutt：yum install -y mutt

4启动sendmail ： systemctl restart sendmail

如果起不来，就需要停到postfix服务

systemctl stop postfix

systemctl start sendmail

发邮件的两种方式：

1、mail -s 'mail test' abc@qq.com < mailtest.txt

2、echo "this is my test mail" | mail -s 'mail test' abc@qq.com

报错

451 Sender address format error.

如果邮件提示发送地址找不到

设置发件人的信息

vim /etc/mail.rc

添加：

set from=busername@sina.com

set smtp=smtp.sina.com

set smtp-auth-user=username

set smtp-auth-password=passwd

set smtp-auth=login

重启sendmail

systemctl restart sendmail

263的SMTP是：

smtp.263.net