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02.18.2007 at 07:24AM PST, ID: 22397186
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SBS 2003 2 NICs unable to telnet into SMTP from outside network

Asked by fl4ian in Simple Mail Transfer Protocol (SMTP), SBS Small Business Server, TCP/IP

Tags: sbs, 2003, telnet, smtp, unable

Windows SBS 2003 box, configured with 2 NICs, unable to telnet into server to fix smtp exchange problem.

goes like this:

internet
cable modem (external static ip address)
router (192.168.0.1)
sbs wan nic (192.168.0.2)
-sbs box-
sbs lan nic (192.168.16.1)
switch
other networked PCs and printers

On the router, I have port forwarding for port 23 (telnet) and port 25 (smtp)  to direct to 192.168.16.1 (sbs lan/internal nic).  I have also port forwarded other ports as necessary for RWW on the SBS, which doesn't work either.

I am able to telnet from the server into itself (for port 25) on 192.168.16.1 and 127.0.0.1.
I am also able to telnet into the server (on port 25) from a PC on the internal network (192.168.16.1)

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Keywords: SBS 2003 2 NICs unable to telnet in…
Title
1 SBS SMTP Connector
2 SBS 2003 Cannot connect to SMTP …
3 SMTP email not working
4 SBS SMTP ERROR
5 Cannot receive SMTP mail on SBS Exc…
6 2nd NIC in SBS box
 
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[+][-]02.18.2007 at 07:43AM PST, ID: 18558698

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[+][-]02.18.2007 at 09:06AM PST, ID: 18558930

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About this solution

Zones: Simple Mail Transfer Protocol (SMTP), SBS Small Business Server, TCP/IP
Tags: sbs, 2003, telnet, smtp, unable
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Solution Provided By: plimpias
Participating Experts: 4
Solution Grade: A
 
 
[+][-]02.18.2007 at 09:28AM PST, ID: 18559009

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[+][-]02.18.2007 at 09:49AM PST, ID: 18559073

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[+][-]02.18.2007 at 09:56AM PST, ID: 18559090

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[+][-]02.18.2007 at 10:13AM PST, ID: 18559147

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[+][-]02.18.2007 at 10:24AM PST, ID: 18559182

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[+][-]02.18.2007 at 10:41AM PST, ID: 18559230

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[+][-]02.18.2007 at 06:12PM PST, ID: 18560664

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[+][-]02.19.2007 at 03:01PM PST, ID: 18567105

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[+][-]02.19.2007 at 05:51PM PST, ID: 18567777

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[+][-]02.19.2007 at 05:58PM PST, ID: 18567801

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