Need email server aid

[Chuck Kuecker]

Chan Chung Hang Christopher wrote:
> Chuck Kuecker wrote:
>   
>> Markus Schönhaber wrote:
>>     
>>> 22.04.2010 01:18, Chuck Kuecker:
>>>
>>>       
<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?
>
>   
Emails were sent to 'mail.ckent.org' which resolves to 66.254.194.29. 
Ultimately, I need to send email to an arbitrary mail server the user 
has an account on.

If I sent to 192.168.0.200, which is the Ubuntu machine, would that help?

Chuck Kuecker