How to deny mails command line

To deny a mail using the command line, you can use the msmtp command with the -d option. Here's an example:

msmtp -d <email_address> <message>

Replace <email_address> with the email address of the recipient you want to deny, and <message> with the message you want to send.

For example:

msmtp -d [email protected] "This email is denied"

This will send an email to [email protected] with the subject "This email is denied" and the body "This email is denied".

You can also use the -s option to specify the subject of the email:

msmtp -d <email_address> -s "Denied Email" <message>

For example:

msmtp -d [email protected] -s "Denied Email" "This email is denied"

You can also use the -f option to specify the from address:

msmtp -d <email_address> -f <from_address> <message>

For example:

msmtp -d [email protected] -f [email protected] "This email is denied"

Note: You need to have msmtp installed and configured on your system to use this command.