the first option: \user is to leave a copy of the message in your mailbox as the default "|/home/user/mail2sms -c /home/user/example.conf -p 666666666" pipe the mail to the mail2sms program so it can be send.
the first option: \user is to leave a copy of the message in your mailbox as the default "|/home/user/mail2sms -c /home/user/example.conf -p 666666666" pipe the mail to the mail2sms program so it can be send.