Hello;
Although the change in my /opt/zimbra/postfix/main.cf are the following;

smtpd_recipient_restrictions = check_recipient_access hash:/opt/zimbra/postfix/conf/protected_recipients,...

same as wrote to RestrictPostfixRecipients - Zimbra :: Wiki

but when i restart postfix with postfix reload command all change related
abount smtpd_recipient_restrictions return default im my main.cf.

Thank you for your relation,
Best Regards,
Aydin KOCAK.