title: How to send an email using sendmail command in linux
body: <p>I tried the below two commands.
  1) From: mail_id
  To: Recepient_mail_id
  Hi, this is my message, and I'm sending it to you!
  .
  2) echo "My message" | sendmail -s subject Receipient_mail_id</p>
  
  <p>But didn't get any mail to the receipient's mail address. </p>
  
  <p>SMTP server is installed on another server ans it is in up and running. So can anyone help me out on how to send a test email through that SMTP server using sendmail or smtp commands?</p>