Perhaps the older toaster version you're running didn't check MX records for
sender (chkuser). Doesn't matter though. Glad you got your DNS straigtened out!

Mark Piekos wrote:
> Eric,
> 
> Thanks for the suggestion.  I did some 'dig-ing' and found an error in
> my dns config.  It's been that way for ages and shouldn't have worked. 
> I can only guess that there was something about the old toaster that
> compensated for this.
> 
> I haven't been able to test it but expect it will work now.  (The old
> toaster is still working which is a good sign).
> 
> Kind regards,
> 
> Mark.
> 
> Eric "Shubes" wrote:
>> What is the domain name configured for the client (sender's email
>> address)?
>> (You don't need to answer here, just check it out for the next question)
>> What do you get when you 'dig' that domain's MX from the toaster?
>>
>> Mark Piekos wrote:
>>  
>>> Eric,
>>>
>>> I added a screenshot from a thunderbird client which has exactly the
>>> same
>>> wording as the squirrelmail message but is more compact.
>>>
>>> My dns servers do have a valid mx records with the correct ip address
>>> and
>>> I built the new server with the same ip address and hostname.  ( I don't
>>> have them both connected simultaneously).
>>>
>>> Kind regards,
>>>
>>> Mark.
>>>
>>>
>>>    
>>>> Mark Piekos wrote:
>>>>      
>>>>> I've managed to build a new toaster on CentOS 4.4 and incoming mail is
>>>>> arriving and readable ok.  When I try to send an email, either to
>>>>> myself or outside, I get an error message 'no valid mx record for
>>>>> domain'.  I built the toaster with djbdns as I have a couple DNS
>>>>> servers in my own domain.  If I switch back to the original server it
>>>>> can send fine.  I notice that my original server has mDNSresponder
>>>>> running.  Do I need to install djbdns or is there a config file in the
>>>>> toaster to tell it where to go for DNS lookups?
>>>>>         
>>>> Can we see the actual error message? It's stating the you do not have a
>>>> MX record; you may have your own DNS running, but did you configure it
>>>> for the domain you're using on the Toaster machine? If so, did you list
>>>> a MX record for it's IP address? Otherwise the machine doesn't know
>>>> where to deliver the message.
>>>>
>>>>
>>>>       
>>
>>
>>   
> 
> 
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-- 
-Eric 'shubes'

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