TELNET Test POP3/IMAP4 connections

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To test a connection for either POP3 or IMAP4 you can TELNET to perform these tests:

POP3:


The first set of instructions establishes whether you have (and therefore Supportworks will have) access to an account on an Internet mail server:


  • 1..On the Supportworks server, run a Windows command prompt.
  • 2..Enter the following to verify that you have POP3 access:

TELNET <mail server> 110

You should now be presented with a banner informing you that you have connected to the mail server.

  • 3..If the above is successful, enter the following in the case of POP3:

USER <username> PASS <password> LIST

where <username> is the login ID for the relevant account on the mail server, and <password> is the required password.

If you can now see a list (POP3) or the number (IMAP4) of valid email messages within the account's Inbox (assuming such messages have been received), this proves that you have access to either a POP3 or IMAP4 service account. You should now disconnect from the mail server (QUIT or 3 LOGOUT, as appropriate) and close the command prompt window.