...hopefully some useful VMware related stuff

Allow Plain Text Login for POP3 on Exchange 2007

19/11/2009 11:25

You may receive the error:

ERR Command is not valid in this state

When trying to enter username / password credentials to a pop3 session.


This can be resolved by opening the Exchange Management Shell and running the following command:

Set-PopSettings -LoginType PlainTextLogin

Followed by restarting the Microsoft Exchange POP3 Service on the Exchange server.

You can test that this has worked firstly by running the command in the shell:


This will show the login type

Secondly test pop3 functionality using telnet as per the article here:


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