You can look your mx record by using nslookup:
[root@elmo msg]# nslookup -type=mx rdcomputersolutions.net
Server: elmo.lan.shirleyfamily.net
Address: 192.168.4.1
rdcomputersolutions.net preference = 10, mail exchanger =
server1.rdcomputersolutions.net
rdcomputersolutions.net nameserver = ns1.scottsboro.org
rdcomputersolutions.net nameserver = ns2.scottsboro.org
ns1.scottsboro.org internet address = 12.21.132.2
ns2.scottsboro.org internet address = 12.21.132.3
[root@elmo msg]# ping server1.rdcomputersolutions.net
ping: unknown host server1.rdcomputersolutions.net
[root@elmo msg]# ping rdcomputersolutions.net
ping: unknown host rdcomputersolutions.net
[root@elmo msg]# ping mail.rdcomputersolutions.net
PING mail.rdcomputersolutions.net (12.21.134.137): 56 data bytes
--- mail.rdcomputersolutions.net ping statistics ---
8 packets transmitted, 0 packets received, 100% packet loss
You have no IP address for your domain (rdcomputersolutions.net)
or the host (server1.rdcomputersolutions.net) that your MX record
is pointing to. My guess of mail.rdcomputersolutions.net has an
IP address but will not return a ping.
Here's what I got when I e-mailed you at
[EMAIL PROTECTED] :
----------------------------------------------------------------------
This is the Postfix program at host server1.rdcomputersolutions.net.
I'm sorry to have to inform you that the message returned
below could not be delivered to one or more destinations.
For further assistance, please contact <[EMAIL PROTECTED]>
If you do so, please include this problem report. You can
delete your own text from the message returned below.
The Postfix program
<[EMAIL PROTECTED]>: mail for
mail.rdcomputersolutions.net
loops back to myself
----------------------------------------------------------------------
Are you running postfix? Is this your postfix reporting the error?
Your DNS provider need to fix your zone.
Bill
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of rharvey
> Sent: Saturday, November 04, 2000 6:35 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [expert] pop-3
>
>
> the mx record is on my providers domain
> how would I see the mx record there?
>
> ----- Original Message -----
> From: "Bill Shirley" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Saturday, November 04, 2000 4:38 PM
> Subject: RE: [expert] pop-3
>
>
> > pop-3 is how you retrieve your mail from a server. "on
> demand" is fine
> > for this and isn't causing your problem. You provide so little
> > information about what you are trying to do, I doubt anyone will
> > be able to help you.
> >
> > What is the mail server named? Are you using sendmail,
> postfix, etc.?
> > What is the machine name of your mail clients (the one that
> worked and
> > the one that didn't)? Show us your DNS entries, particulary the MX
> > record.
> >
> > Bill
> >
> > > -----Original Message-----
> > > From: [EMAIL PROTECTED]
> > > [mailto:[EMAIL PROTECTED]]On Behalf Of rharvey
> > > Sent: Saturday, November 04, 2000 3:54 PM
> > > To: Expert
> > > Subject: [expert] pop-3
> > >
> > >
> > >
> > > under service control in linuxconf
> > > pop-3 says it it enabled on demand
> > > I can send an email at from mydomain.net
> > > but when I try to send a reply back or I try to send a
> new mail to my
> > > domain.net it says Host unknown (Name server:
> > > server1.rdcomputersolutions.net.: host not found)
> > > does on demand cause this? if not what does?
> > > please help.
> > >
> > > thanks
> > > Robert
> > >
> > >
> > >
> >
> >
> >
>
>
> --------------------------------------------------------------
> --------------
> ----
>
>
> > Keep in touch with http://mandrakeforum.com:
> > Subscribe the "[EMAIL PROTECTED]" mailing list.
> >
>
>
>
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