Hi. A starting point would be to tighten your rules in Global -> MTA settings. For me, all 'Protocol Checks' are normally ticked. Do some research on the impact of these. Regards. On Tue, Jul 22, 2014 at 6:17 PM, Cynthia Wahome via skunkworks < skunkworks@lists.my.co.ke> wrote:

Hello all I currently am running zimbra open edition as a mail server for our org. Things were working ok for a month or so until all of a sudden a lot of spam Started coming in.my server has already been blacklisted twice. It has been listed again and I don't want to delist it yet. I have checked my network and cleaned them of any malware or spam/viruses

Before I purchase anything is there anything I can do or any application I can use to do a deep level checking of the spam and block them? When I check the lot files,I don't see any account that is compromised. What can I do?

Any help is highly appreciated.

Regards Cynthia

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