Use mailx to send emails

Mailx is a tool used on UNIX systems to process emails. It can be used to send and read emails. Next let's take a look at how to use it to send emails. The sending format mailx-s subject user@xxx.com <message_file suppose that the mail content is stored in the msg file, you can use the following method: mailx-s "test mail" cho@163.com <msg or cat msg | mailx-s "test mail" cho@163.com separate multiple recipients with commas | mailx-s "test mail" cho@163.com, cho@163.com, The cho3@163.com can also enter the message content directly from the command line: mailx-s "test mail" the command above the cho@163.com enters the command line Input status, where you can enter the content, press Ctrl + d to end the input. Other options:-r specifies the sender-c specifies the CC user-B specifies the BCC