Re: Help climbing the mountain of a linux mail server...

First of all, a mail server should have a permanent IP address. Telkom
has the annoying habit of changing the IP address every couple of days.
So unless you have a permanent address set up, don't bother.

What if I use something like no-ip? My IP changes but my DNS names
constantly changes to point to my IP. This would work wouldn't it?
Anyway, it doesn't really matter bcoz you still have that DNS name that
telkom gives you and it looks as if this stays pretty much the same.
(In the form of dsl-xxx-xxx-xx.telkomadsl.co.za)

To be able to send mail to a domain from the outside, the sender needs
to know which mail server handles mail for that domain. It does that by
looking at the MX record in the DNS. So you have to set up a domain,
nameserver(s), and in the nameserver configure the MX record to point to
the IP of your mailserver.

Ok, but if I send mail to jan@xxxxxxxx and the mail server is piet.net,
mail should go to piet.net regardless of an MX record?? As I understand
it, a MX record is only needed when your domain is blahblah.net and
your mail exchange is mail.foobar.com or something like that. An MX
record just points out the mail handler for a certain domain. Am I
right here?

I have registered a CName (eg. test.net.tf) that points to that telkom
address (dsl-xxx-xxx-xx.telkomadsl.co.za). Do I need to register a MX
record for test.net.tf aswell to point for that domain to
dsl-146-233-60.telkomadsl.co.za?

.

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