How do I authenticate using telnet?

To test SMTP authentication via telnet:

  1. In a telnet client such as PuTTY, connect to the SMG appliance: telnet 587.
  2. Greet the mail server: EHLO mailserver.com.
  3. Tell SMG you want to authenticate with it: AUTH LOGIN.
  4. Paste the base64 encoded username.
  5. Paste the base64 encoded password for the username.

How do I send an email using telnet 25 port?

How to send email using telnet

  1. Open your command prompt.
  2. Now, connect with telnet using the following command: telnet example.com 25.
  3. Type ehlo example.com.
  4. Type mail from: [email protected]: mail from: [email protected].

How do I test SMTP office365 com using telnet?

From a telnet prompt, type the following commands:

  1. O smtp.yourserver.com port# , for example O smtp.office365.com 25 , and then press “Enter”.
  2. EHLO then press “Enter”.
  3. AUTH LOGIN then press “Enter”.
  4. MAIL FROM:[email protected] then press “Enter”.
  5. RCPT TO:[email protected] then press “Enter”.

How do I telnet to port 25?

How to run a Telnet test for the Port 25 & 110 or backup 2375 &…

  1. From Windows, Click START > Run.
  2. Type: telnet. – To see what is typed, enter: SET LOCALECHO.
  3. Enter in the telnet command in this format: open press Enter.

How do I Telnet to mail server?

1. Install the Telnet client

  1. Launch Server Manager.
  2. In the left pane, click Features.
  3. In the right pane, click Add Features.
  4. Check the box labeled Telnet Client and click Next. Note: Do not check the Telnet Server box.
  5. Click Install.
  6. Once the installation is complete, click Close.

How do I telnet to mail server?

How do I test SMTP authentication in Office 365?

Test the Office365 SMTP Relay Service from PowerShell

  1. To open PowerShell right-click the start button and Choose Windows PowerShell.
  2. Enter the following command. $msolcred = get-credential.
  3. A window pops up.
  4. Then use the Send-MailMessage command to send a test email.
  5. If there is no error, check your inbox for a new email!

How do I Telnet to a port number?

Type in “telnet ” and press enter. For example, you would type “telnet 123.45. 67.89 1521” If a blank screen appears then the port is open, and the test is successful.

What is telnet with example?

Telnet enables a user to manage an account or device remotely. For example, a user may telnet into a computer that hosts their website to manage his or her files remotely. In the image is an example of a telnet session. As shown, a telnet session is a command line interface.

How do I use telnet in Windows?

Install Telnet on Windows

  1. Click Start.
  2. Select Control Panel.
  3. Choose Programs and Features.
  4. Click Turn Windows features on or off.
  5. Select the Telnet Client option.
  6. Click OK. A dialog box appears to confirm installation. The telnet command should now be available.