How to Telnet port 110

Telnet port 110 is a problem we need to pay attention to in the mail settings. It shows how to remotely log on to port 5.0 of the Server when the Server runs Microsoft Exchange Server 5.5 and 110. this helps solve the communication problem between the POP3 client and the mailbox on the Exchange Server computer.

Follow these steps to confirm the correct POP3 connection between you and your mailbox on Microsoft Exchange.

Note: after entering each row, press ENTER:

Run the following command to open the Telnet session:

Telnet 1, 110

If you can run the command, you can get a response from the server:

+ OK Microsoft Exchange POP3 server version 5.0.1457.10 ready

After Telnet 110, run the following command to start logon to the mailbox to Start Communication:

USER

You should see the following response:

+ OK

Enter the following command:

PASS

You should see the following response:

+ OK User successfully logged on

Run the following command to list all emails in your mailbox:

LIST

The following response changes, depending on the number of emails in the mailbox ):

+ OK 1 373 2 388 3 388

"Email number" refers to the number on the left.

Run the following command to retrieve Emails:

RETR <email no.>

You can see the selected email in the "email number" response:

+ OK Received: by YOMAN2.dns.microsoft.com id <01BC2F60.EA72A8C0@YOMAN2.dns.microsoft.com>; Thu, 13 Mar 1997 03:44:55-0000 Message-ID: From: yoman2 To: yoman2 Subject: test2 Date: Thu, 13 Mar 1997 03:44:55-0000 X-Priority: 3 MIME-Version: 1.0 Content-Type: text/plain

After Telnet 110, complete the preceding steps and enter the following command to delete the email:

DELE <email no.>

Now we can complete the operation.