[Cialug] Cannot retrieve mail through internal nework

[David Champion]

- Firewall?
- Can you scan the ubuntu box (i.e. nmap) from another machine? Does it 
show 25 and 110 open?

p.s. I emailed my postfix main.cf to your personal email acct if you 
want to compare to yours...

-dc

Chris Van Cleve wrote:
> I decided to rebuild an old 1.2 GHz P4 box as a linux server to host  my 
> family web site and email. Since I was in an adventurous mood, I  
> installed Ubuntu to try it out. (Love it, btw. Finally a usable  Debian. 
> ;) ) I am having two problems with it though, one of which  I'm hoping 
> the Linux Geniuses here can help me figure out.
> 
> The box is running Postfix because I'm used to it, and I think it's  the 
> best mail server. It's working flawlessly. My router is  configured to 
> forward ports 25 and 110 to that box. Using Webmin, I  am able to send 
> an receive email just fine. Everything sounds good,  right? Here's the 
> catch:
> 
> I have 4 other PCs on my home network, all of which are configured to  
> use my home domain for email. None of these machines, through various  
> clients, is able to connect to the Ubuntu box. I am getting denial  
> messages for port 110 and port 25 when trying to receive/send mail  
> respectively. I thought at first it was a resolution problem (and  spent 
> a good chunk of time playing with host files), but all 4 PCs  correctly 
> reach the box's webmin interface using the domain name.
> 
> Any ideas?
> 
> Chris VC
> 
> 
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