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After applying Windows 2003 SP, Exchange 2003 no longer responds on port 25
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After applying Windows 2003 SP, Exchange 2003 no longer... - 3.Aug.2005 6:27:00 PM
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lee@int-r-net.com
Posts: 11
Joined: 13.Jun.2005
From: Naperville, IL
Status: offline
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After I applied Windows Server 2003 SP1 to my Exchange 2003 server, it stopped responding on port 25. I can't use the telnet test because it won't accept connections and of course I am getting no mail from the outside world. The SMTP service is running, I have started and stopped it. I did not run the SCW tool and this is a fesh win2003 install and Exc 2003 install, no migrations and no upgrades.
Sincerely appreciate your help resolvng this!
Lee
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 3.Aug.2005 6:44:00 PM
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jmcbee
Posts: 123
Joined: 9.May2005
From: Honolulu, HI
Status: offline
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Lee, check in Exchange System Manager and see if the SMTP Virtual Server is started (in addition to the service being started).
What happened when you tried to TELNET to port 25? Did TELNET show any type of error message?
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 3.Aug.2005 7:22:00 PM
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lee@int-r-net.com
Posts: 11
Joined: 13.Jun.2005
From: Naperville, IL
Status: offline
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I only have the default SMTP virtual server and it was started. I stopped and started it and it seems to stop and start normally.
In response to my telnet mail.discoveringfaith.com 25 command, the server responded "Could not open connection to host on port 25: Connect failed."
Lee
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 3.Aug.2005 8:43:00 PM
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lee@int-r-net.com
Posts: 11
Joined: 13.Jun.2005
From: Naperville, IL
Status: offline
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I can't run the exchange best parctices tool either because it says it cannot connect to the routing master on port 25.
Lee
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 3.Aug.2005 9:12:00 PM
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brandi
Posts: 4
Joined: 2.Aug.2005
From: NY
Status: offline
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Did you check to see if you were running windows firewall on the system by any chance. Could be blocking the port.
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 4.Aug.2005 12:17:00 PM
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lee@int-r-net.com
Posts: 11
Joined: 13.Jun.2005
From: Naperville, IL
Status: offline
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The Windows Firewall is not running. I do not have the Internet Connection Sharing service running on this computer.
Lee
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 4.Aug.2005 12:25:00 PM
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isawader
Posts: 119
Joined: 7.Jul.2005
From: US
Status: offline
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I am glad I am not jumping on the "let's apply windows SP1" bandwagon. It screws up ton of stuffs. I will wait for SP1a
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 4.Aug.2005 12:28:00 PM
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lee@int-r-net.com
Posts: 11
Joined: 13.Jun.2005
From: Naperville, IL
Status: offline
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I reapplied Exchange SP1 and it had no effect on the server's refusing connections on port 25. Port 80 and port 443, both of which were also open before applying WinSrv 2003 SP1 work. IIS opens and SSL works. I can log into OWA using SSL with no problem. This is extremely frustrating since we are a small shop and this is our only email server. We are not getting any email IN from the outside world. We can send email internally. We can send mail OUT to the outside world.
I throughly appreciate any of your suggestions, as one never knows when it is something simple stupid that I forgot to check or change. I used the default path for the install c:\program files\exchsrvr. I haven't been able to find anything in the SP1 documentation about gotcha's for this.
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 4.Aug.2005 12:34:00 PM
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isawader
Posts: 119
Joined: 7.Jul.2005
From: US
Status: offline
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I haven't looked at the win2k3 sp1 yet.
Does MS say anything about uninstalling the windows 2003 SP1? or is it permenant?
w2k3 SP1 shuts off and reconfigures some security features.
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 4.Aug.2005 12:45:00 PM
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packet46
Posts: 9
Joined: 6.Jul.2005
From: England, UK
Status: offline
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Lee,
Is this a separate server or is it SBS2003?
If it is SBS2003, do you have ISA2000 or 2004 installed? You may find that the server publsihing rule on ISA has "grabbed" the tcp_25 port and is not allowing Exch to use it.
I had a similar issue with web services and publishing all on the same SBS box. ISA always grabs the port first.
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 4.Aug.2005 1:12:00 PM
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lee@int-r-net.com
Posts: 11
Joined: 13.Jun.2005
From: Naperville, IL
Status: offline
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It is a standalone Windows 2003 standard edition server running Exchange 2003 standard edition. I do not have ISA running anywhere on this network. We use a hardware firewall. This server is the DC and runs DHCP, Wins, DNS, IIS/SSL and Exchange.
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 4.Aug.2005 2:53:00 PM
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packet46
Posts: 9
Joined: 6.Jul.2005
From: England, UK
Status: offline
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OK.
So by definition, we have to assume that your TCP/IP stack is not corrupted in any way because HTTP and HTTP/S seem to be working OK.
I presume other services are fine also. To test the stack properly you could spin up a new web site and run it on a random port number and then telnet to that port.
When you get the "..cannot connect to..." message from the telnet application, that signifies that the port (25) is actually up on the target host but the service is not bound to it (winsock). If the port was closed, the telnet connection attempt would halt immediately with no messages.
Have you telnet to the IP address and port? I notice form yoru last post that you tried via FQDN+tcp_port.
Maybe you have a DNS issue? HAve you checked the zone file and reverse zone file after SP1 installation. Maybe that got corrupted?
Dave H
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 4.Aug.2005 3:26:00 PM
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SeanRinVA
Posts: 51
Joined: 6.Jul.2004
From: Hampton, VA
Status: offline
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I too am having this problem. Did a rebuild of a SBS 2003 server (no ISA installed, using a hardware firewall), and installed Exchange 2003 SP as well as Windows Server 2003 SP1, and I cannot telnet to port 25 on my server. I have been wondering why 99% of my email doesn't have the SCL showing and now it appears that it is due to exch 2003 POPing it from my secondary mail server at my hosting service.
Any ideas on how to fix this? BTW - when I telnet from a workstation within the LAN, it works. I get Connection Failed.
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 4.Aug.2005 3:51:00 PM
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lee@int-r-net.com
Posts: 11
Joined: 13.Jun.2005
From: Naperville, IL
Status: offline
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I've done telnet to FQDN and to IP and get the same result. I am able to create a new website on port 82 and it comes up in the browser just fine. I can telnet to port 82 just fine. I tried binding the new web to port 25 and it said the port was in use and the web would not start when I tried to use port 25. I'm thinking that's a good sign? It knows port 25 is there but it appears like you said that SMTP isn't bound to the port. Any ideas how I can force SMTP to bind to port 25?
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 5.Aug.2005 12:32:00 AM
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nofile05
Posts: 1
Joined: 5.Aug.2005
From: San Diego
Status: offline
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Any chance you have Anti Virus software running?
I know MCAFFEE will block port 25
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 5.Aug.2005 6:08:00 AM
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packet46
Posts: 9
Joined: 6.Jul.2005
From: England, UK
Status: offline
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Lee,
Right. We're making progress here (although it probably doesn't feel that way to you!). Something on your server is grabbing tcp_25 before the SMTP service can get a hold of it.
Without knowing your system inside out and assuming you only have one NIC installed (and therefore cannot bind the application to another ip_addr+port) then you are stuck with setting all services (like Mcafee) to manual -EXCEPT SMTP- and reboot the machine.
Hoopefully then the SMTP service will grab tcp_25 first and when you start the other services they will 'settle' for another port or operate at a higher layer in the tcp/ip stack without the need to grab a port.
At least with this scenario you should get the mail services running again.
Dave H
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 5.Aug.2005 9:43:00 AM
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lee@int-r-net.com
Posts: 11
Joined: 13.Jun.2005
From: Naperville, IL
Status: offline
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I used MS Config and suppressed everything from starting that wasn't Microsoft including McAfee, Microsoft Antispy etc. I rebooted and it had no effect. SMTP is still not able to listen for mail. I was going to try to uninstall WS03 SP1 next, realizing that I will probably have to reinstall the entire server if that goes badly. Just what I wanted to do, spend my weekend reinstalling the server! I certainly can uninstall McAfee and MS Antispy etc. and anything else that looks remotely like it could cause a problem, but I'm doubting if that would help.
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 5.Aug.2005 10:40:00 AM
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mark@mvps.org
Posts: 6811
Joined: 9.Jun.2004
From: Philadelphia PA
Status: offline
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An easier way to test what Packet46 suggested would be for you to go into ESM and drill down to the SMTP VSI. Change the port that listens on to (say) 2525 and restart the SMTP Service.
Then telnet to "telnet server 2525" and see what you get. That'll isolate whether any package has grabbed 25 before SMTP can get a look-in or not.
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RE: After applying Windows 2003 SP, Exchange 2003 no lo... - 5.Aug.2005 11:02:00 AM
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sth@7t.dk
Posts: 14
Joined: 3.May2003
From: Copenhagen, Denmark
Status: offline
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Maybe this can show you something:
netstat -a -o -n
that will give you the PID which you can see in
task manager.Mine shows 1748 which is inetinfo.exe
med user = system.
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