Search found 16 matches

by symo
Thu Sep 07, 2017 3:55 pm
Forum: Administrators
Topic: [SOLVED] Self-signed certificates not trusted
Replies: 3
Views: 1166

Re: Self-signed certificates not trusted

Thanks phoenix!
by symo
Thu Sep 07, 2017 3:04 pm
Forum: Administrators
Topic: [SOLVED] Self-signed certificates not trusted
Replies: 3
Views: 1166

[SOLVED] Self-signed certificates not trusted

Hello, on my devices I started to get an error related to self signed certificates that could not be trusted by email clients, so it's impossible to send email. I tried to regenerate the certificate following the kb article 21727 but I still can't send email both from computer and mobile devices. Is...
by symo
Mon Jan 23, 2017 9:41 am
Forum: CalDAV / CardDAV / iSync
Topic: Problems with CalDav x Mac OS Sierra 10.12 - Zimbra 8.6.0
Replies: 4
Views: 4146

Re: Problems with CalDav x Mac OS Sierra 10.12 - Zimbra 8.6.0

Hi everyone, glad to see that is a common problem. After I upgraded from 8.6.0 to 8.7.1 CalDav with Mac OS is unusable: some events are showed and others are disappeared. Tried to remove shares and recreate but this doesn't fix the issue. Please, anyone can help to find a solution to this frustratin...
by symo
Tue Aug 04, 2015 5:30 am
Forum: Administrators
Topic: Block fake senders
Replies: 1
Views: 754

Block fake senders

Hello everybody! Since a couple of days I noticed in the mail queue a lot of sent spam messages. At first look it seems that messages are sended from one of my email address (user@mydomain.net), but looking at the log I can see that the sender ip doesn't merge with the sender. Log:##############...
by symo
Mon Dec 22, 2014 5:28 am
Forum: General Questions
Topic: Relay access denied via webmail
Replies: 2
Views: 554

Relay access denied via webmail

Hi Jorge! Thanks for your reply. No, it's an existing installation, and I have faced with this issue since the beginning. I've confingured two domains. Following the previous mentioned Wiki article did not fix the issue. So I try to add to mynetworks the public IP of the server (currently bi...
by symo
Fri Dec 19, 2014 9:42 am
Forum: General Questions
Topic: Relay access denied via webmail
Replies: 2
Views: 554

Relay access denied via webmail

Hello everybody! I'm running Zimbra COS 8.5.1 on Ubuntu Server 12.0.4 and I'm facing with a strange issue only when I use webmail to send messages. I checked the zimbra.log and i found this: ################ Dec 19 14:38:37 mail postfix/smtpd[30850]: connect from unknown[xxx.xx.xx.xxx]Dec 19...
by symo
Fri Aug 08, 2014 5:32 am
Forum: Administrators
Topic: Zimbra SNMP
Replies: 1
Views: 662

Zimbra SNMP

Hello everyone! I would like to monitor my Zimbra 8.0.7 server through OpManager server but I can't establish SNMP connection. Credentials are correct, and SNMP service on Zimbra server is running. If I run command "zmlocalconfig | grep snmp" I get:########## snmp_notify = yes snmp_tra...
by symo
Thu Jun 05, 2014 8:21 am
Forum: Administrators
Topic: Relay outgoing messages to external SMTP
Replies: 9
Views: 1621

Relay outgoing messages to external SMTP

Hi Jorge, I followed your instructions, I configured my SpamTitan server and everything is working fine!

Just for information, if I would like to revert to original configuration, which command I need to do on my zimbra?
Kind regards!

Simone
by symo
Tue May 27, 2014 11:12 am
Forum: Administrators
Topic: Relay outgoing messages to external SMTP
Replies: 9
Views: 1621

Relay outgoing messages to external SMTP

[quote user="jorgedelacruz.es"]Hi Symo, Phonenix has right, check all internal first. Also you can do this simply steps for try to mitigate the spam on your System: Zimbra: Seguridad (I Parte) » Blog de Jorge de la CruzWith this simple step, you will be secure against extenrla people tr...
by symo
Tue May 27, 2014 11:08 am
Forum: Administrators
Topic: Relay outgoing messages to external SMTP
Replies: 9
Views: 1621

Relay outgoing messages to external SMTP

[quote user="10330phoenix"]The problem you need to address is why there is spam going out from your server, that's your major problem and relaying is not the answer. Have you checked for any compromised accounts on your server? Have you checked the log files and the server daily email ...

Go to advanced search