How Linux uses SendMail to send mail

How Linux uses SendMail to send mail

Linux uses SendMail to send mail, Method 1 Install SendMail can be used, mail-s "test" [email protected] <content.txt Bin/mail will send mail by default using local SendMail, which requires the local machine to install and start the SendMail service, which is cumbersome to configure and creates unnecessary resource usage. Method 2. Leverage external SMPT servers By modifying the configuration file, you can use an external SMTP server to send mail with an external SMTP server without using SendMail: Modify/etc/nail.rc (/etc/mail.rc) Set [email protected] Smtp=smtp.domain.comset smtp-auth-user=username smtp-auth-password=passwordset smtp-auth=login Description From is the e-mail address sent SMTP is the address of the external SMTP server that occurs Smtp-auth-user is an external SMTP server authenticated user name Smtp-auth-password is the user password for external SMTP server authentication Smtp-auth is the way of email authentication Once the configuration is successful, you can use the You can send a message to test: Mail-s "Test" [email protected] <content.txt where-S is the message header, [email protected] is the recipient address, content.txt inside the message body Use of the Mail command MAILQ can view system queues

How Linux uses SendMail to send mail