Disable port 25 windows 2003

Click to expand Joined Sep 7, Messages Deep78 said:. SBSP said:. Last edited: Apr 16, To be honest, I dont think you can just disable a port as such its the application that opens it.

But i might be wrong, maybe there is a registry setting that will allow you to disable the use of an individual port number. ShawnStar Well-Known Member. Joined Nov 7, Messages If the server is sending out mail it will probably not be from port 25 so don't waste to much time with that unless it has been confirmed it's using port 25 to send the mail. Rather find what is sending the mail from the server and remove that. TheGrove Expert Member. Joined Jan 4, Messages 1, Then you need to check what is running on the server that is sending the mail out.

InvisibleJim Expert Member. Joined Mar 9, Messages 2, Your antivirus may have a setting to prevent mails being sent eg in McAfee it is called 'Prevent mass mailing worms from sending mail' in the antivirus standard protection settings.

Is it possible that you have some sort of email notification settings enabled in Windows or any of the applications on the server? If you're malware free, that may be the source of the emails. Offensive Content. Wrong Category. Cancel Send Report.

Marked As Answer. Port 25 accepts emails from and sends email to other mail servers MX. Port is used by users to authenticate and relay mail through the server. If you block 25, your mail server will not be able to receive email from any other mail server nor send email to any other mail server.

Are you sure you want to ban this user? Cancel Ban User. Are you sure you want to ban this IP Address? Are you sure you want to delete this item? Cancel Delete. Thanks for the reply.

Hello, I have a server which no one can RDP into and would like to hopefully find a solution. Message that users get when trying to remote desktop to a Windows R2 server: "The client could not connect to the remote computer. Wednesday, June 9, PM. This problem is now fixed. We loaded windows updates and then rebooted the server, not expecting this to fix the rpd issue. But After the reboot we are able to RDP in normally.

Marked as answer by 4ndrew Monday, June 28, PM. Monday, June 28, PM. Checked if port is listening! Thanks very much for the reply! I tried the following command from another system telnet servername Connecting To Could not open connection to the host, on port Connect failed I checked in device manager as you recommended. Hello, From the Terminal Server, can you telnet the localhost with Port ? Wednesday, June 16, AM.

Hi Lionel, Thanks for the reply. Here are the results of the netstat Microsoft Windows [Version 5. Thursday, June 17, PM. Hello, On the server side, please run services. Friday, June 18, AM. Friday, June 18, PM. Is Remote Desktops Enabled sysdm.