echo"(1) This is a very plain and simple email for testing purposes."| mail -s "First testmail" -r localsender1@local.example.com first-mail@example.com
echo"(2) This is a very plain and simple email for testing purposes."| mail -s "Second testmail" -r localsender2@local.example.com second-mail@example.com
echo"(3) This is a very plain and simple email for testing purposes."| mail -s "Third testmail" -r localsender3@local.example.com third-mail@example.com
echo"(4) This is a very plain and simple email for testing purposes."| mail -s "Fourth testmail" -r localsender4@local.example.com fourth-mail@example.com
echo"(5) This is a very plain and simple email for testing purposes."| mail -s "Fifth testmail" -r localsender5@local.example.com fifth-mail@example.com
echo"Let's try an email with an attachment"| mail -s "This email contains an attachment" -r attachments@filepush.example.com -A /vagrant/main.go files@receiver.example.com