Hello sadiq my problem was solved check this link for Restrict Postfix Recipients. http://wiki.zimbra.com/index.php?title=RestrictPostfixRecipients Regards Rahul Kolan 9867940077
************************************************************************************************************** Every person has skill and talent, whether it’s big or small talent, use it and create a masterpiece P Save Trees. Print this e-mail only if you really need to. --- On Thu, 10/1/09, sadhiq <[email protected]> wrote: From: sadhiq <[email protected]> Subject: [Linux_Mantra] Re: Permit sending to distribution lists only to authenticated users To: [email protected] Date: Thursday, October 1, 2009, 11:29 PM --- In Linux_Mantra@ yahoogroups. com, Rahul Kolan <rahul.kolan@ ...> wrote: > > > Hi all! >  >     Is there any way Zimbra can be configured to permit sending mail to > distribution lists only to authenticated users? > The problem I have is that we have a distribution list with many addresses > from the outside of the organization. Now, I just figured out that one > spammer sent mail to this list and the mail was delivered to all recipients. > As all our distribution lists are only used by members of the organization, > the best solution, and most secure, would be to allow sending mail only to > authenticated users. > > Help in this regards will be highly appreciated. .. >  >  >  >  >  >  >  Regards > Rahul Kolan > 9867940077 > > ************ ********* ********* ********* ********* ********* ********* > ********* ********* ********* ********* ******** > Every person has skill and talent, whether it’s big or small talent, use it > and create a Masterpiece >  > I think zimbra doesnt support for these type of content filtering, so many organization uses a seprate content filter software. So in the above case u can go for citadel mail suite. http://linux. softpedia. com/get/Communic ations/Email/ Citadel-6340. shtml http://www.citadel. org/doku. php http://postfixmail. com/blog/ index.php/ citadel-features / http://aeronetworks .ca/citadel- clients.html B.Sadhiq [Non-text portions of this message have been removed]

