Search found 4 matches

by Peter Parker
Thu Jun 21, 2018 8:52 am
Forum: Administrators
Topic: Fail2Ban on Zimbra 8.8 with Centos 7
Replies: 0
Views: 975

Fail2Ban on Zimbra 8.8 with Centos 7

Hi guys, I’m having a multi-server Zimbra environment as follow: 1 LDAP + 2 MTA + 2 MAILBOX + 1 PROXY. I’m setting Fail2Ban on Zimbra 8.8 with Centos 7 to prevent the brute force attacks. I’m following this article http://linux-sys-adm.com/how-to-configure-firewall-and-fail2ban-for-prevent-brute-for...
by Peter Parker
Thu May 24, 2018 8:27 am
Forum: Administrators
Topic: Sender address rejected: Domain not found
Replies: 1
Views: 283

Sender address rejected: Domain not found

Hi guys, I'm running into problems with sending mail on our mailserver. Some mails are sent and delivered without any problems (eg Gmail), while others are deferred with "Sender address rejected: Domain not found" Here are the logs for a specific mail that was trying to be sent: May 24 03:...
by Peter Parker
Mon May 07, 2018 6:46 am
Forum: Installation and Upgrade
Topic: Zimbra behind HaProxy
Replies: 0
Views: 1228

Zimbra behind HaProxy

Hi guys, :D I have been recently installed Zimbra behind HaProxy. HaProxy will load balancing for two MTA. I have configured front-end & backend on HaProxy as you can see the below. I also configured on Outlook to send test email-message. All tests completed successfully. But, I have the problem...
by Peter Parker
Mon Apr 09, 2018 2:53 am
Forum: Administrators
Topic: Zimbra is not working with CBpolicyd
Replies: 2
Views: 925

Zimbra is not working with CBpolicyd

Hi guys, My boss said that he wants to limit sending message from domain local to outside and outside to any domain with maximum message 200 email/user/hour and he also wants to install Zimbra and Policyd on 2 hosts. So, I have installed on my lab 2 hosts with a scenario as below: Host A: Zimbra Ser...

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