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by quanah
Sun Apr 17, 2016 3:42 pm
Forum: Administrators
Topic: Brute force attack & SPAM configuration
Replies: 20
Views: 11865

Re: Brute force attack

I'm using file2ban, I want to underline that the ip address of the client who made the login attemps is not correct (it's my server public ip) and this is a problem. Please explain what do you mean when you write it is an attack aginst postfix, i see port 7071 into the log. How can I understand if ...
by quanah
Sat Apr 16, 2016 5:54 pm
Forum: Administrators
Topic: sender missing when the users try to answer the mails.
Replies: 1
Views: 391

Re: sender missing when the users try to answer the mails.

Hello how are you? I am looking for information about a strange behavior that I have noticed in zimbra. The version we are using is: Release 8.6.0_GA_1153.RHEL6_64_20141215151155 RHEL6_64 FOSS edition, Patch 8.6.0_P4. It happens when, for example, "user1" send an email to any distribution...
by quanah
Sat Apr 16, 2016 5:54 pm
Forum: Administrators
Topic: Zimbra 8.6.0 distribution list members disapearing
Replies: 10
Views: 2716

Re: Zimbra 8.6.0 distribution list members disapearing

zanthius wrote:Just done some more testing... it seems that logging out and back in causes the list members to disappear... how odd.


Can you please file a bug at https://bugzilla.zimbra.com with exact reproduction steps? Thanks.
by quanah
Sat Apr 16, 2016 5:51 pm
Forum: Administrators
Topic: Brute force attack & SPAM configuration
Replies: 20
Views: 11865

Re: Brute force attack

When someone connects to postfix to auth, it generates a SOAP auth request. So what is likely happening is someone is trying to brute force against postfix. If you use something like fail2ban to block IP addresses slamming postfix, your SOAP calls should go away. I.e., you're attempting to tackle th...
by quanah
Sat Apr 16, 2016 5:19 pm
Forum: General Questions
Topic: need download url for the zimbra desktop
Replies: 2
Views: 1160

Re: need download url for the zimbra desktop

i want to install the zimbra desktop in ubuntu 16.04 beta2, i need the source, i visited the download page and found the binary for ubuntu old version and zcs-patch-8.6.0_GA_1194.tgz patch, i download this patch but don't know is it all or need to download the zimbra source. ZDESKTOP downloads are ...
by quanah
Fri Apr 15, 2016 3:51 pm
Forum: Administrators
Topic: Preventing spoofed email
Replies: 17
Views: 7462

Re: Preventing spoofed email

Filed Bug 104677 for this issue.
by quanah
Fri Apr 15, 2016 12:12 am
Forum: Administrators
Topic: Relay access denied
Replies: 3
Views: 4818

Re: Relay access denied

Thx jorgedicruz, but the error persists, and the program in Delphi is not my. I added the IP of the machine (internet) and still keeps giving "relay access denied" zimbra@mail:~/postfix/conf$ zmprov gs `zmhostname` zimbraMtaMyNetworks # name `my hostname` zimbraMtaMyNetworks: 127.0.0.0/8 ...
by quanah
Thu Apr 14, 2016 11:29 pm
Forum: Administrators
Topic: Preventing spoofed email
Replies: 17
Views: 7462

Re: Preventing spoofed email

Thank you for the response. In the future I'll create a separate post. I hope you can post the amavis author's response here some time. Thanks, Daniel Hi Daniel, You can track the response here as well: https://lists.amavis.org/pipermail/amavis-users/2016-April/thread.html I finally got the questio...
by quanah
Thu Apr 14, 2016 11:24 pm
Forum: Administrators
Topic: Preventing spoofed email
Replies: 17
Views: 7462

Re: Preventing spoofed email

My server is running 8.6. How can I tell whether or not DMARC is enabled and running? Zimbra uses SpamAssassin to flag anything that fails DMARC as a high probability SPAM. So there is nothing you have to do for DMARC to be "running" in 8.6, if you are using the Zimbra MTA with antispam i...

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