Weird Postfix Rejection

I am currently rebuilding a mailserver with postfix and am working on some reject rules.

postconf -d | grep mail_version
mail_version = 2.10.1

I am having problems with this section:

smtpd_relay_restrictions =
  permit_mynetworks,
  permit_sasl_authenticated,
  reject_unauth_destination

It should be implemented in my version of postfix according to this document: http://www.postfix.org/SMTPD_ACCESS_README.html but for some reason when I have it implemented i always get this error:

postfix/smtpd[8865]: fatal: in parameter smtpd_relay_restrictions or smtpd_recipient_restrictions, specify at least one working instance of: reject_unauth_destination, defer_unauth_destination, reject, defer, defer_if_permit or check_relay_domains

Even though I have "reject_unauth_destination" included it fails to see it.

I am stuck for ideas around this.

Solution 1:

Thanks to @MichaelHampton, there was an invisible character on the line.