Zimbra Bulk Email sending handling


      I want to block or restrict my zimbra server from our users sending bulk mails to outside domains.
      This is to actually block any virus or spammer using any credentials from our email server.
      Awaiting for suggestions.

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vibinsathyanAuthor Commented:
Any updates?
Sanga CollinsSystems AdminCommented:
What you are looking for is rate limit sending and policies.  These are the links i used to configure my Zimbra 8.

First step get policyD running according to the following instructions: http://imanudin.net/2014/09/08/how-to-install-policyd-on-zimbra-8-5/

Second step implement rate limits on sending:

This should get you going!

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vibinsathyanAuthor Commented:
          Is this can be implemented in opensource edition.

Thanks for your comment.
Sanga CollinsSystems AdminCommented:
Yes. This will work in open source edition.
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