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IIS SMTP service problem
In my network, I installed IIS in one WinXP Pro computer so as to share its
SMTP service for other computers to use in the network. I just configured the SMTP service to allow relay and nothing else. It worked fine and other computers were able to send e-mails using that computer as SMTP server. I want to use ICS in that WinXP Pro computer and so I installed a second NIC card. The new card is connected to the default gateway. I reconfigured the network to let other computers to connect to that WinXP Pro computer instead of directly to the default gateway. The ICS works fine and others can connect to the Internet. However, the SMTP service does not work well. Now all out-going e-mails just stay in the "Queue" folder without sending out. When I remove the new NIC card and switch back to the original configuration, it works again. It seems that when I install a second NIC card, SMTP will not work. What is the problem or what do I have to configure more? Martin |
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#2
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IIS SMTP service problem
Did you think of firewall? I suspect that your NIC having trouble with; the
firewall is on. Hm! So it seems the main computer you are sharing ICS, in that firewall settings, make sure PORT 23 SMTP enable by going to advanced options in the properties. You can see whether your firewall is on in the NIC you having trouble by Right Clicking NIC, going to properties, then go to advanced. MAKE SURE you turn on the firewall that is going out to the Internet only. Do not turn on firewall inside. Just the NIC or modem that goes out to the internet. Yes, most likely problem with your firewall setup. CHAMI... "Martin" wrote: In my network, I installed IIS in one WinXP Pro computer so as to share its SMTP service for other computers to use in the network. I just configured the SMTP service to allow relay and nothing else. It worked fine and other computers were able to send e-mails using that computer as SMTP server. I want to use ICS in that WinXP Pro computer and so I installed a second NIC card. The new card is connected to the default gateway. I reconfigured the network to let other computers to connect to that WinXP Pro computer instead of directly to the default gateway. The ICS works fine and others can connect to the Internet. However, the SMTP service does not work well. Now all out-going e-mails just stay in the "Queue" folder without sending out. When I remove the new NIC card and switch back to the original configuration, it works again. It seems that when I install a second NIC card, SMTP will not work. What is the problem or what do I have to configure more? Martin |
#3
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IIS SMTP service problem
CHAMILA, thanks for the response.
I did not enable the ICF. There is no firewall at the default gateway either. I even tried to disable ICS and let the new installed NIC be idle without connecting to anything. I then switched back to the original network configuration by connecting all computers to the default gateway. It is still the same. I tried the IIS SMTP server at a Win2003 Server with RRAS enabled for NAT and routing. The same problem arises. I really do not know what's wrong!? Martin "CHAMILA" wrote: Did you think of firewall? I suspect that your NIC having trouble with; the firewall is on. Hm! So it seems the main computer you are sharing ICS, in that firewall settings, make sure PORT 23 SMTP enable by going to advanced options in the properties. You can see whether your firewall is on in the NIC you having trouble by Right Clicking NIC, going to properties, then go to advanced. MAKE SURE you turn on the firewall that is going out to the Internet only. Do not turn on firewall inside. Just the NIC or modem that goes out to the internet. Yes, most likely problem with your firewall setup. CHAMI... "Martin" wrote: In my network, I installed IIS in one WinXP Pro computer so as to share its SMTP service for other computers to use in the network. I just configured the SMTP service to allow relay and nothing else. It worked fine and other computers were able to send e-mails using that computer as SMTP server. I want to use ICS in that WinXP Pro computer and so I installed a second NIC card. The new card is connected to the default gateway. I reconfigured the network to let other computers to connect to that WinXP Pro computer instead of directly to the default gateway. The ICS works fine and others can connect to the Internet. However, the SMTP service does not work well. Now all out-going e-mails just stay in the "Queue" folder without sending out. When I remove the new NIC card and switch back to the original configuration, it works again. It seems that when I install a second NIC card, SMTP will not work. What is the problem or what do I have to configure more? Martin |
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