Zimbra Distribution list Restriction

[izadi60]

Hi
I'm using zcs-6.0.8_GA_2661.RHEL5.20100820051652 on Centos 5.5 with 5 domains
I have three different Distribution list
all@example.com
test@sub.example.com
everyone@example1.com
I restricted sending to all@example.com by using RstrictPostfixReci .
some users can send email to this list :a@example.com,b@externaldomain.com
but I want to restrict sending mail to test@sub.example.com too. some other users like c@example.com and d@sub.example.com should send mail to test@sub.example.com. But I don't know how can I configure to restrict others to send mail to this list. Can Zimbra assign different permitted senders to different distribution list?
thanks.

[izadi60]

No answer yet??
I'm still waiting.
Please somebody help .....