Implement blacklist zimbra

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efonseca
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Joined: Wed Apr 27, 2016 8:56 pm

Implement blacklist zimbra

Post by efonseca »

Dear good day,

I zimbra 8.6.0_GA_1153.FOSS in ubuntu server version 14.04 LTS, I can visualize my server receives a lot of spam, implement a blacklist, where I can verify if it really is blocking.

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vavai
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Re: Implement blacklist zimbra

Post by vavai »

Hi,
efonseca wrote:Dear good day,

I zimbra 8.6.0_GA_1153.FOSS in ubuntu server version 14.04 LTS, I can visualize my server receives a lot of spam, implement a blacklist, where I can verify if it really is blocking.

Attached image.
You can use following RBL :

b.barracudacentral.org
zen.spamhaus.org
cbl.abuseat.org

Check your /var/log/zimbra.log with grep (tail -f /var/log/zimbra.log | grep -i blocked or tail -f /var/log/zimbra.log | grep barracuda) to see whether your RBL works as expected or not
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quanah
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Re: Implement blacklist zimbra

Post by quanah »

efonseca wrote:Dear good day,

I zimbra 8.6.0_GA_1153.FOSS in ubuntu server version 14.04 LTS, I can visualize my server receives a lot of spam, implement a blacklist, where I can verify if it really is blocking.

Attached image.
Using the Admin UI for MTA functions may destroy your MTA. Use the command line.

See https://wiki.zimbra.com/wiki/Anti-spam_Strategies for more information on how to set up AS/AV.
--
Quanah Gibson-Mount
Product Architect, Symas http://www.symas.com/
OpenLDAP Core team http://www.openldap.org/project/
efonseca
Posts: 24
Joined: Wed Apr 27, 2016 8:56 pm

Re: Implement blacklist zimbra

Post by efonseca »

Hello Vavai,

additional configuration addresses, add the list of barracuda and I can not get any mail, nor those of yahoo, gmail and hotmal.

I did atravez console, zmprov mcf + zimbraMtaRestriction "reject_rbl_client b.barracuda.org"
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vavai
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Posts: 174
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Re: Implement blacklist zimbra

Post by vavai »

Hi,
efonseca wrote:Hello Vavai,

additional configuration addresses, add the list of barracuda and I can not get any mail, nor those of yahoo, gmail and hotmal.

I did atravez console, zmprov mcf + zimbraMtaRestriction "reject_rbl_client b.barracuda.org"
Would you please check on /var/log/zimbra.log and paste relevant info regarding incorrect blocking domain by barracuda and others RBL. It would possible that your server didn't correctly resolving DNS and ended up by false positive blocking the domain. To determine the reason why any domain blocking by barracuda, please paste/attach your Zimbra.log here so we can looking at the root cause of this problem.
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