Linux configuration uses external SMTP to send mail

The Mail command needs to set the mail.rc (or nail.rc) file,

Set [email protected]
Set smtp=smtp.domain.com
Set [email protected]
Set Smtp-auth-password=password
Set Smtp-auth=login

After setting the above file, use the following command to enter the body content, then you can send the file.
Mail-v-S "Test" [email protected]

-V indicates detailed procedures are displayed
-S for title
For additional details, see the following instructions:
Mail Command parameters:
I ignore the interrupt signal of the TTY. (interrupt)
I forced to set into interactive mode. (Interactive)
V Print out a message, such as the location, status, etc. of the courier. (verbose)
n does not read into the Mail.rc profile.
s message header.
c cc email address.
b bcc e-mail address.

Linux configuration uses external SMTP to send mail