cat << EOF | sendmail -t
Sender: [email protected]
From: Sender <[email protected]>
Reply-To: Sender <[email protected]>
To: To <[email protected]>
CC: Cc <[email protected]>
Disposition-Notification-To: [email protected]
Subject: Generic Subject
Generic Body
EOF
Knowledge
/usr/sbin/sendmail -t < filename.eml
/usr/sbin/sendmail -v -t < filename.eml
/usr/sbin/sendmail -Am -v -t < filename.eml
env command is to launch interpreters
1. Python 3.9: #!/usr/bin/env python3.9
2. Python 2.6: #!/usr/bin/env python2.6
3. Python : #!/usr/bin/env python
4. Ruby : #!/usr/bin/env ruby
5. Perl : #!/usr/bin/env perl
6. PHP : #!/usr/bin/env php
References