Need email server aid

[Chan Chung Hang Christopher]

Chuck Kuecker wrote:
> Markus Schönhaber wrote:
>> 22.04.2010 01:18, Chuck Kuecker:
>>
>>   
>>> Markus Schönhaber wrote:
>>>     
>>>> 21.04.2010 18:41, Chuck Kuecker:
>>>>       
>> <snip>
>>> Here's the data:
>>>
>>> postconf -n:
>>>
>>> lias_database = hash:/etc/aliases
>>>     
>> Copy and paste error?
>>   
> 
> Yep. My bad.
>> <snip>
>>> mail.ckent.org[66.254.194.29]
>>>     
>> Above, you said that the embedded system is in your local network. But
>> this log excerpt shows a client connecting from 66.254.194.29, i. e. an
>> IP that is neither in 127.0.0.0/8 nor 192.168.0.0/16. Therefore it's not
>> contained in the IP ranges you configured as mynetworks and
>> permit_mynetworks doesn't apply.
>>
>>   
> OK. I see that. 66.254.194.29 is my static IP from my ISP. When I 
> resolve 'mail.ckent.org', that's what comes up. I certainly don't want 
> just anyone sending email to that IP to be able to relay!
> 
> This is what confuses me - my Windoze PC has Thunderbird set up to 
> access email via 'mail.ckent.org', and it's on my local network, just 
> like the embedded gadget and the Linux box hosting 'mail.ckent.org'. Why 
> does the PC connect reliably, but the embedded gadget fails reliably?
> 

Where did you point your embedded system to send email? 192.168.x.x or 
something else?