Free telnet server for testing
Start PowerShell on the system that is allowed to send an email. In this example, will resolve to one of the Exchange Servers IP addresses. Use the Exchange Server hostname, IP address, or the DNS record. If you only have one Exchange Server or DNS round-robin, you most likely have the A-record pointed to your Exchange Server. In the internal DNS, an A-record is set up for that will translate to the load balancer. Sign in on this server and run the Telnet PowerShell script. The AP01-2016 server is an application server that sends emails to internal and external recipients. It’s important to run the SMTP Telnet PowerShell script on the client itself and not on the Exchange Servers.įor example, you add the Windows Server AP01-2016 IP address 192.168.1.60 to the Exchange Server’s SMTP relay. You can enter a different port than port 25 and test the port that you like. In this example, we will test the anonymous SMTP relay with port 25.
You like to know that SMTP works, and you need to test the SMTP connection. Write-host -foregroundcolor yellow "Subject : $Subject"Īfter preparing the SMTP PowerShell script, you will test the SMTP connection with EHLO, and HELO commands. Write-host -foregroundcolor yellow $command Write-host -foregroundcolor yellow "MAIL FROM: $from" Write-host -foregroundcolor yellow $Greet $writer = new-object System.IO.StreamWriter($stream) $socket = new-object ($RemoteHost, $Port) Write-host -n -foregroundcolor cyan ($encoding.GetString($buffer, 0, $read)) $Port, # Choose port number 25 or any other $RemoteHost, # Exchange Server host name or IP address Create a script folder if you don’t have one. Give it the name Test-SMTP-Telnet.ps1 and place it in the C:\scripts folder.
Free telnet server for testing code#
No antivirus or security products block SMTP connectionsĭownload the Test-SMTP-Telnet.ps1 PowerShell script or copy and paste the below code in Notepad.HELO SMTP command and sent an email to recipient.