Search found 2053 matches

by L. Mark Stone
Thu Jan 28, 2021 11:52 am
Forum: Administrators
Topic: Postfix/Spamassassin and "Trusted Networks" - Excluding IPs from spam scanning...
Replies: 2
Views: 1289

Re: Postfix/Spamassassin and "Trusted Networks" - Excluding IPs from spam scanning...

That attribute only sets for which hosts Postfix will act as an open relay. If you want to treat internal emails differently the best way IMHO is to configure additional Policy Banks in amavis. Zimbra by default treats all emails the same as regards amavis checking, so as to prevent a compromised ma...
by L. Mark Stone
Mon Jan 11, 2021 3:33 pm
Forum: Administrators
Topic: shrink the data.mdb sparse file
Replies: 11
Views: 2801

Re: shrink the data.mdb sparse file

The problem here is Veeam, which is ignorant of sparse files and upon restore will create an ordinary 80GB file when it restores the LDAP directory. From experience I have found, as wonderful a product as Veeam is, it is inappropriate for Zimbra live system backups, as are all so-called "crash-...
by L. Mark Stone
Sat Jan 09, 2021 12:21 am
Forum: Administrators
Topic: SSL Certs will not install from gui
Replies: 8
Views: 2203

Re: SSL Certs will not install from gui

I am also experiencing the same challenge which makes it hard to even generate CSR for SSL installation Hello, Zimbra talks to its different servers and itself with ssh. Zimbra user is related to a ssh key pair and each ssh public key of each zimbra server is exchanged between each other. So if the...
by L. Mark Stone
Fri Jan 08, 2021 9:49 pm
Forum: Administrators
Topic: ngx_zm_lookup_connect connect lookup handle error in Multiple server setup with MTA/Proxy on VPS Cloud connected via VPN
Replies: 6
Views: 1558

Re: ngx_zm_lookup_connect connect lookup handle error in Multiple server setup with MTA/Proxy on VPS Cloud connected via

Well it seems the issue has been resolved! What made it work was removing the DHCP address leased by pfsense DHCP from the host file on VR-MAIL and replacing it by the IP address given by the VPN server instead (10.10.10.2). All works fine now! :) Thanks very much for your help and the hints given ...
by L. Mark Stone
Tue Jan 05, 2021 3:02 pm
Forum: Administrators
Topic: Zimbra - Server blocking new connections
Replies: 2
Views: 408

Re: Zimbra - Server blocking new connections

That's Zimbra's built-in Denial of Service Filter, working as designed. https://wiki.zimbra.com/wiki/DoSFilter https://www.missioncriticalemail.com/2018/10/19/using-zimbras-dosfilter-and-failed-login-lockout-policy-together/ https://www.missioncriticalemail.com/2020/06/08/zimbra-fail2ban-for-submiss...
by L. Mark Stone
Mon Jan 04, 2021 1:51 pm
Forum: Administrators
Topic: ngx_zm_lookup_connect connect lookup handle error in Multiple server setup with MTA/Proxy on VPS Cloud connected via VPN
Replies: 6
Views: 1558

Re: ngx_zm_lookup_connect connect lookup handle error in Multiple server setup with MTA/Proxy on VPS Cloud connected via

Hi Tom, Happy to help; it's what the forums are for (paying it forward...). Some observations/questions in no particular order: 1. The format for the localhost line in /etc/hosts is always "127.0.0.1 localhost.localdomain localhost". 2. All three Zimbra servers need to be in /etc/hosts, at...
by L. Mark Stone
Fri Jan 01, 2021 5:44 pm
Forum: Administrators
Topic: ngx_zm_lookup_connect connect lookup handle error in Multiple server setup with MTA/Proxy on VPS Cloud connected via VPN
Replies: 6
Views: 1558

Re: ngx_zm_lookup_connect connect lookup handle error in Multiple server setup with MTA/Proxy on VPS Cloud connected via

Hi Tom, Welcome to the forums, Happy New Year, and thanks for your very clear and comprehensive post. Multi-homing Zimbra servers, although it can be done, introduces many complications because various Zimbra services will try to bind on all interfaces. VPN clients often fuss with the routing table,...
by L. Mark Stone
Tue Dec 22, 2020 3:50 pm
Forum: Administrators
Topic: Issues with ActiveSync and (some) Apple products in 8.8.15 (NE)
Replies: 5
Views: 1617

Re: Issues with ActiveSync and (some) Apple products in 8.8.15 (NE)

What's strange (to us) is that it worked in 8.8.12, but no longer in 8.8.15. I'm not saying it's not client side, but there was a distinct difference all of a sudden after the upgrade. Oh well, let's hope it gets resolved somehow. You can always try downgrading EAS back to 14.1, wait for the phones...
by L. Mark Stone
Tue Dec 22, 2020 3:46 pm
Forum: Administrators
Topic: CSR without SAN
Replies: 4
Views: 1009

Re: CSR without SAN

Sounds like progress!

I would do the certificate verification and installation from the commandline as well, using the examples in the wiki.

All the best,
Mark
by L. Mark Stone
Tue Dec 22, 2020 1:58 pm
Forum: Administrators
Topic: Issues with ActiveSync and (some) Apple products in 8.8.15 (NE)
Replies: 5
Views: 1617

Re: Issues with ActiveSync and (some) Apple products in 8.8.15 (NE)

There's been EAS-related discussions on the Zeta Alliance Weekly Call Summaries, I'd review those... https://forums.zimbra.org/search.php?keywords=Zeta+Alliance+Weekly+Call+Summaries+EAS Thank you. It looks like it's quite possible that some of these findings are what some of our clients are runnin...

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