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Testing POP3 and SMTP Server Mail Server Using Telnet

Last modified: October 11, 2022
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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)

c:\telnet mail.YourDomain.com 25Connecting To mail.YourDomain.com…_

You should receive some response as below:

received some respond

 

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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