Re: Mail Through Firewall

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On Wednesday 18 February 2004 1:57 pm, Peter Marshall wrote:

> Hey, I am sure this question is going to seem trivial to everyone here ..
> but I will ask anyway.
> I want to get outlook to work on my inside box .... I have it all set up
> correctly, but it can't find the pop / smtp servers ...
>
> I ran ethereal to see what the problem was ...
> When I try to connect I get 3 requests
> source 10.0.0.2
> dest 10.0.0.255

That's a broadcast address...

> Protocol NBNS

Ugh.   M$ Outlook trying to use NetBios Name Resolution instead of DNS :(

> source and dest ports: 137

NetBios....

> and I get no reply's ... ( well, I get an arp request after the 3rd try
> ...) Any ideas how to get this working ?

Tell the client machine (or Outlook, if this is one of those things which 
Outlook tries to look after by itself, never mind how the rest of the machine 
has been configured), to resolve names by DNS, not by using NetBios.

Then it might sensibly look up the IP address of your POP3 server and send a 
TCP packet to port 110 on it....

Regards,

Antony.

-- 
"Note: Windows 98, Windows 98SE and Windows 95 are not affected by [MS
Blaster].   However, these products are no longer supported.   Users of these
products are strongly encouraged to upgrade to later versions."

(which *are* affected by MS Blaster...)

http://www.microsoft.com/security/security_bulletins/ms03-026.asp

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