Changes

  :~# sendmail -v -H "exec openssl s_client -quiet -connect smtp.gmail.com:587 -tls1 -starttls smtp" <span style=color:red>'''</tmp/mail.txt'''</span> -f [email protected] -au"[email protected]" -ap"pass"[email protected]

  :~# sendmail -v -H "exec openssl s_client -quiet -connect smtp.gmail.com:587 -tls1 -starttls smtp" <span style=color:red>'''</tmp/mail.txt'''</span> -f [email protected] -au"[email protected]" -ap"pass"[email protected]

As you can see, instead of using echo, we're using <span style=color:red>'''</tmp/mail.txt'''</span>, which is the path the '''mail.txt''' file that stores the email's header and body. This file does not exist in the router, therefore, you should create it yourself. To create a file, use the '''touch''' command:

As you can see, instead of using echo, we're using <span style=color:red>'''</tmp/mail.txt'''</span>, which is the path to the '''mail.txt''' file that stores the email's header and body. This file does not exist in the router, therefore, you should create it yourself. To create a file, use the '''touch''' command:

  :~# touch /tmp/mail.txt

  :~# touch /tmp/mail.txt