Testing POP3 and SMTP Server Mail Server Using Telnet

Last modified: May 30, 2020
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You may perform the following test to confirm the SMTP server is online and responding:

1. Start > Run > cmd (WinNT/XP/2003) orStart > Run > command (Win95/98)

smtp server command

2. Type command:telnet mail.domainname.com 25 (Example as below)

 

You should receive some response as below:

received some responds

 

The message confirmed that the SMTP server is working properly.

3. To quit the Telnet prompt, type “quit”.

To confirm the POP server is online and responding:

1.Start > Run > cmd (WinNT/XP/2003) orStart > Run > command (Win95/98)

2.telnet mail.domainname.com 110 (Example as below)

confirm the pop server

 

You should receive some response as below:

 

received some response

The message confirmed that the POP server is working properly.

3. To quit the Telnet prompt, type “quit”

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