Spam abuse prevention

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armitage318
Posts: 34
Joined: Sat Sep 13, 2014 2:01 am

Spam abuse prevention

Postby armitage318 » Mon Nov 20, 2017 8:59 am

Hi,
what solution can I use to prevent outgoing spam with Zimbra Open Source edition?
For example, is there a way to automatically suspend an account or send a notification to an administrator in case one account exceed a defined spam threshold?
Thank you


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L. Mark Stone
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Re: Spam abuse prevention

Postby L. Mark Stone » Mon Nov 20, 2017 1:19 pm

armitage318 wrote:Hi,
what solution can I use to prevent outgoing spam with Zimbra Open Source edition?
For example, is there a way to automatically suspend an account or send a notification to an administrator in case one account exceed a defined spam threshold?
Thank you


cbpolicyd is your friend:

https://wiki.zimbra.com/wiki/Cluebringer_Policy_Daemon

Basically, if you set outbound rate-limiting quotas, you can have a compromised mailbox and not send out so much spam that your whole server gets blacklisted.

Hope that helps,
Mark
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