First run a quick test to make sure the “sendmail” application is installed and working correctly. Execute the following command, replacing “firstname.lastname@example.org” with your e-mail address.
# mail -s “Hello world” email@example.com
Hit the return key and you will come to a new line. Enter the text “This is a test from my server”. Follow up the text by hitting the return key again. Then hit the key combination of Control+D to continue. The command prompt will ask you if you want to mark a copy of the mail to any other address, hit Control+D again. Check your mailbox. This command will send out a mail to the email id mentioned with the subject, “Hello world”.
To add content to the body of the mail while running the command you can use the following options. If you want to add text on your own:
# echo “This will go into the body of the mail.” | mail -s “Hello world” firstname.lastname@example.org
And if you want mail to read the content from a file:
# mail -s “Hello world” email@example.com < /home/calvin/application.log Some other useful options in the mail command are: -s subject (The subject of the mail) -c email-address (Mark a copy to this “email-address”, or CC) -b email-address (Mark a blind carbon copy to this “email-address”, or BCC) Here’s how you might use these options: # echo “Welcome to the world of Calvin n Hobbes” | mail -s “Hello world” firstname.lastname@example.org -c email@example.com -b firstname.lastname@example.org