Search found 84 matches

by dbayer
Thu Dec 01, 2016 7:02 pm
Forum: Installation and Upgrade
Topic: Upgrade Zimbra and Ubuntu
Replies: 4
Views: 2056

Re: Upgrade Zimbra and Ubuntu

Hi Phoenix, Thank you for the quick reply. ZeXtras looks amazing! One quick question. I also have Message Sniffer http://www.messagesniffer.com/Products/SNFforNix.jsp installed on my current server. It required me to modify some spam assassin rules to work with Zimbra. Will ZeXtras pull those rules ...
by dbayer
Thu Dec 01, 2016 6:51 pm
Forum: Installation and Upgrade
Topic: Upgrade Zimbra and Ubuntu
Replies: 4
Views: 2056

Upgrade Zimbra and Ubuntu

Hello, We are currently using Zimbra 8.6 on Ubuntu 14.04. I would like to upgrade to Ubuntu 16.04 and Zimbra 8.7.1. I'm thinking the easiest approach would be to create a new Virtual Machine and install both from scratch and then import our current Zimbra Data. Does this sound like a viable approach...
by dbayer
Wed Sep 21, 2016 4:18 pm
Forum: Zimbra Mobile Plus
Topic: An introduction to Zimbra Mobile Plus
Replies: 6
Views: 55325

Re: An introduction to Zimbra Mobile Plus

Hi Cine,

Thanks for the info. It has a few nice features I would enjoy, but not enough to pay extra compared to my existing NE license.

Thanks,
Daniel
by dbayer
Wed Sep 14, 2016 3:10 pm
Forum: Zimbra Mobile Plus
Topic: An introduction to Zimbra Mobile Plus
Replies: 6
Views: 55325

Re: An introduction to Zimbra Mobile Plus

How is this different then the Mobile Activesync support built into the network edition?
by dbayer
Mon Apr 25, 2016 2:49 pm
Forum: Administrators
Topic: Preventing spoofed email
Replies: 17
Views: 14934

Re: Preventing spoofed email

quanah wrote:
Hi Daniel,

You can track the response here as well:

https://lists.amavis.org/pipermail/amav ... hread.html

I finally got the question sent out today.

Regards,
Quanah
Thank you! I'll check it out.
by dbayer
Wed Apr 13, 2016 3:13 pm
Forum: Administrators
Topic: Block multiple SMTP Auth Attempts
Replies: 3
Views: 3452

Re: Block multiple SMTP Auth Attempts

Thanks Vavai and Jorge.

I will look into blocking these with our firewall. That script looks very useful as well!

Daniel
by dbayer
Mon Apr 11, 2016 7:36 pm
Forum: Administrators
Topic: Block multiple SMTP Auth Attempts
Replies: 3
Views: 3452

Block multiple SMTP Auth Attempts

Hello, Is there a setting in Zimbra to lockout an IP Address after so many SMTP AUTH attempts? I'm having problems with spammers trying to break in. See the sample log below. Thanks, Daniel Apr 11 06:51:50 postfix/smtpd[30584]: connect from unknown[58.218.185.110] Apr 11 06:51:51 postfix/smtpd[30584...
by dbayer
Mon Apr 11, 2016 12:16 am
Forum: Installation and Upgrade
Topic: Banned Content Alert
Replies: 4
Views: 4128

Re: Banned Content Alert

Is there a way to only unblock encrypted PDF's?

If not, has this already been requested as a new feature?

I like the security of blocking all other encrypted archives, but we get many password protected PDF's, and I have to manually unblock this each time someone sends us one.

Thanks,
Daniel
by dbayer
Mon Apr 04, 2016 10:58 pm
Forum: Administrators
Topic: [SOLVED] RBL Blocking Everything
Replies: 7
Views: 11185

Re: RBL Blocking Everything

I've solved my problem! It turns out the DNS forwarder I've been using was blocking these checks. We were using Commodo Secure DNS. https://www.comodo.com/secure-dns/switch/ We've been having some separate issues with this provider and I am now switching all of our DNS settings to another provider. ...
by dbayer
Mon Apr 04, 2016 9:49 pm
Forum: Administrators
Topic: [SOLVED] RBL Blocking Everything
Replies: 7
Views: 11185

Re: RBL Blocking Everything

Hello, I'm still having this issue. I've contacted SORBS and my ISP. My IP address is no longer listed on SORBS. But I still have the message service unavailable in my logs. I'm not sure what I can try next. Does anyone have any suggestions? Thanks Apr 4 17:43:24 localHost postfix/smtpd[20591]: warn...