Doesn't anyone know for sure what this problem is? Is it because the chat was removed in zimbra 8.11?

Ok well, for anyone finding this, it seems chat was removed from zimbra 8.

https://imanudin.net/2016/02/10/zimbra- ... -zimbra-8/

Figures, all the nice things keep going to the commercial version.

The connect tool looks commercial and I don't have such a need. I just wanted to have a way to chat with another person on the Zimbra server without having to use external services like messenger, telegram, etc. Don't need video or any special features really. Just a quick way to chat with someone w...

Hi, why do you suggest that? Are you saying what I'm posting is common, there are problems with the chat zimlet?

I have installed and enabled the zimbra chat zimlet. I can see it on the server and I've allowed it to everyone. However, on a web browser, I get the following error. On the zimbra desktop client (latest/last version), it is never there. There is no chat zimlet to be found. I've read everything I ca...

BTW, thanks for trying to help me. It is appreciated.

Thanks for the blog article. I bet plenty of people would appreciate the same using firewalld.

I bet most people don't even use all of the features. We never have. We simply use it as a nice email client, stable, reliable, multi account. Why not consider stripping all that stuff out and continuing to have a nice client? Seems a shame to have to use something else when we love zimbra, both cli...

Still banned on gmail. Totally unfair that a huge company like that is banning smaller companies and hurting them. Gmail and all these others used to allow spammers to do anything they want in fear of losing users emails. It's their own faults probably that spammers went so crazy for so many years a...

Thanks for all the help. I think I am going to install fail2ban working with firewalld. The only thing that's confusing is someone mentioned ports 20 and 21 which are not in use anywhere so not sure what this is about. Also, it's not clear what I'll block because as someone pointed out, SASL is part...