Configuration Help

[Lebmann, Paul]

Hi Sultan!

> 1. On the domain host I set up MX record pointing to the IP address of
> the server for Kolab (this is for delivering the emails to the
> server). Can I use the MX record with IP:Port format to point it to a
> server behind the firewall?

If your server sits behind a firewall you have to configure NAT (dNAT) 
and the MX record should point to a IP on your firewall, reachable from 
the internet. For this IP you have to set dNAT to have the packages 
delivered to your mail server. You should also make sure, that the 
reverse DNS entry is set.

> 2. For outbound emails from the Kolab server, how does the email
> leave? Do you have to specify any DNS?

Again I think this is more of an issue with your network configuration. 
Your mail server has to be able to resolve DNS requests and has to be 
allowed to reach out to other smtp servers on the internet. So please 
check your firewall configuration.

> 3. I also noticed during the installation that the postfix settings
> gave me several choices and I selected the default mode (smarthost
> internet) for mail settings.

If you select smarthost the postfix server expects one smtp server which 
is on the internet an where your postfix server is going to log in to, 
to send your mail.
 From the postfix install screen:

"Internet with smarthost:
Mail is received directly using SMTP or by running a utility such as 
fetchmail. Outgoing mail is sent using a smarthost."

So you should probably reconfigure your postfix (dpkg-reconfigure 
postfix) and choose "internet site" or if a smarthost is what you want 
you should research postfix configuration.


Paul


> FROM: signaldeveloper at gmail.com [mailto:signaldeveloper at gmail.com]
> SENT: Friday, October 02, 2015 5:49 PM
> TO: Sultan Ghaznawi
> CC: users at lists.kolab.org
> SUBJECT: Re: Configuration Help
> 
> Sultan - this isn't a specific Kolab question you are asking. This is
> basic mail server handling. An MX record is needed, everything else
> works out of the box.
> 
> - Paul
> 
> On Oct 2, 2015, at 3:51 PM, Sultan Ghaznawi <shghaznawi at telusmail.net>
> wrote:
> 
>> Hello Everyone,
>> 
>> This is my first post and I am very new to Kolab, so I appreciate
>> your patience.
>> 
>> I have installed Kolab on an Ubuntu 14.04 server. I am able to login
>> as the LDAP admin and create new accounts. The server is running
>> virtually and sits behind a firewalled router. I would like to do a
>> proof of concept for using Kolab in our production environment but I
>> am stuck at how to configure incoming/outgoing mail settings.
>> 
>> I have spent a lot of time on the documentation and it doesn’t
>> explicitly talk about how I should configure the Kolab server to
>> send out mail and I am very confused with regards to how incoming
>> mail is handled. I know that I need to add an MX record to the
>> domain name in question, but I do need some help and any
>> guide/tutorial out there would be very helpful.
>> 
>> After reading about Kolab and spending time on the demo servers, I
>> am very appreciative of all the effort that has gone into this truly
>> open source software and share the vision of its developers in terms
>> of its growth potential. Please help me get a working Kolab server
>> in place as I would like to get involved and contribute.
>> 
>> Thanks,
>> 
>> Sultan
> 
>> _______________________________________________
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>> users at lists.kolab.org
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> 
> 
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