Wow. Who needs Microsoft Exchange - Zimbra is unbelievable! I just stumbled across Zimbra a few weeks back, and never really knew (or acknowledged) that something like this existed and was also open source. Really nice job guys, I'm loving this thing already (and I haven't even got it working yet!)
So yes, I'd love to use Zimbra for all my emailing needs (on a personal level). Mainly, I want to use Zimbra to synchronize email, contacts, tasks, calendar, etc. between my laptop and two desktops (one at home and one at work), as well as my Blackberry. For now, I'd like to stick with MS Outlook and Zimbra's web interface though. I think Zimbra is capable of doing all that plus more, which is awesome.
I'm in the process of setting this up on a residential Verizon FiOS line. I have a dynamic IP, but have converted an old domain which I don't use for much over to be updated dynamically. Supposedly, port 25 is NOT blocked by FiOS, and I believe I can confirm that is true because I can telnet on port 25 to my server from outside my network and connect to it.
My server runs Ubuntu Server 7.04, fresh install - only Zimbra is installed at this time. The server is in a DMZ from my router, which also seems to be working well. But I guess I'm confused as to what I need to do to get this up and running. I'm proficient (certainly no expert) with Linux (mostly Debian-based experience) but I'm starting to wonder if I'm waisting my time by trying to get this working here.
I've done some research and have discovered most ISPs only allow you to send mail from their own SMTP servers. That's fine - no problem there really, but what are the exact settings Zimbra needs to get this working? I'd think it would need some sort of username and password from me, that tells Verizon's mail servers that I am a customer and should be allowed. I don't see a field for either of these though, simply a checkbox that says "Use authentication" or something similar.
At the moment, I cannot send nor receive email to my Zimbra account. I can, as I mentioned, connect to the mail server via telnet on port 25. When I send mail to email@example.com from my primary Verizon account, I get a return message stating "Illegal host/domain name found", but when I send it to firstname.lastname@example.org I get nothing back. Just seems to get lost in cyberspace.
I believe my MX records are correct, but I'm not completely sure. This domain is registered through Namecheap, if that matters/helps. I'm new to email servers - very little experience with them.
Anyone care to shed some light on this for me? Is it possible? Is what I'm doing at least kind of making sense to the experts here? What do I need to do to get this running?
I know, a lot of questions, but I'd really appreciate some guidance!
Thanks in advance.