Shorewall users - May 2002 - URGENT SMTP problem

Hello,
I have the following situation.

Internet---fw ---lan(192.168.1.0/24)
on the inside we have a SMTP server running on 192.168.1.5 (note it is not 
the firewall) this smtp server is used for outgoing user@bussinesdomain.com 
smtp
I edited my rules:
ACCEPT          net     loc:192.168.1.5 tcp     25      -       all

this works fine if i am using my outlook on the outside.
However if I am in the office and try to send mail to my user@domain I get 
errors. I am sure that this problem is cased by the firewall, because i used 
linksys dsl router with port forwarding and everything worked fine.
I think that the problem is in the routing. Somehow i need to tell the 
firewall to forward all internal requests going to the smtp server ( 
external ip) back to the smtp on the internal net. Please let me know if you 
need more explanations.
thanks allot.

__________________________________
Aleksey Zakharov
226 Madrid St.
San Francisco, CA 94112
Home: (415)452-3224
Mobile: (415)816-5622
E-Mail: alekseyz@hotmail.com
__________________________________

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> -----Original Message-----
> From: Aleksey Zakharov [mailto:alekseyz@hotmail.com]
> Sent: Saturday, May 11, 2002 4:21 PM
> To: shorewall-users@shorewall.net
> Subject: [Shorewall-users] URGENT SMTP problem
> 
> 
> Hello,
> I have the following situation.
> 
> Internet---fw ---lan(192.168.1.0/24) on the inside we have a SMTP
> server running on 192.168.1.5 (note it is not the firewall) this
> smtp server is used for outgoing user@bussinesdomain.com smtp
> I edited my rules:
> ACCEPT     net     loc:192.168.1.5 tcp     25      -       all
> 
> this works fine if i am using my outlook on the outside. However
> if I am in the office and try to send mail to my user@domain I get 
> errors. I am sure that this problem is cased by the firewall,
> because i used linksys dsl router with port forwarding and
> everything worked fine. I think that the problem is in the routing.
> Somehow i need to tell the firewall to forward all internal requests
> going to the smtp server (external ip) back to the smtp on the
> internal net. Please let me know if you need more explanations.
> thanks allot. 
If I understand your post correctly, faq #2 addresses your problem.

http://www.shorewall.net/FAQ.htm#faq2

Steve Cowles