I believe you need to add the port-changing line directly under the existing line labeled "smtp inet n......" and further that the line should read: 27 inet n - n - - smtpd Don't forget about any firewalls you may have as well... Please try and let us know? Hope that helps, Mark

Please post your change to master.cf.in

Sorry, I should have been clearer. I found myself on the Zimbra forum because I googled invaluement. Seeing these posts praising invaluement made me see red, so I registered in order to reply. I am just a simple guy with an email address which I created with SFR over 20 years ago. Until recently, I...

Invaluement is a nightmare. I would never use them. They block genuine mails. It has happened to me three times. Most recently today. When I say three times, the second time, I was blocked to two e-mail adresses (members of my family) for several days until I worked out how to contact invaluement. ...

FWIW... One of my on-premises customers here is the US reached out to me late last week with the same issue.

I mentioned it seemed similar to the restrictions one can place on a mobile device via Zimbra's mobile device management functionality, but we got no further.

Mark

https://www.missioncriticalemail.com/20 ... ick-start/

Hope that helps,
Mark

Zimbra is multi-tenant capable right out of the box, so you can host however many domains you want. When you install Zimbra, its default domain is set to the fqdn of the first Zimbra server you install. That fqdn needs to be resolvable to the private IP address of the Zimbra server. Feel free to use...

notooth wrote:I just want to test its functions on localhost before using it in production.

Then you'll need to set up private DNS for Zimbra to use. Otherwise, it won't install nor start.

Hope that helps,
Mark

That domain name is not a legal domain name (it's too long), so none of your right hand side uri checkers can parse it.

The good news is that none of your users will be able to click on it in the body of an email and have it connect anywhere.

Hope that helps,
Mark

I just upgraded to 8.8.15p3 [Zimbra 8.8.15_GA_3869 (build 20190917004220)] and seem to have a regression where images and HTML layouts no longer render correctly again. Is this a known problem? Try running apt-get update && apt-get dist-upgrade. You may be offered some Zimbra updates. Hope ...