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Exchange 2010 POP3 mail problem.

Posted on 2011-09-29
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Last Modified: 2012-05-12
New installation of Exchange 2010 on a 2003 domain with an existing Exchange 2003 server.

Some users are moved to the Exchange 2010 server.

POP mail is enabled and the service is running on the Exchange 2010 Server.

Users can't set up POP mail, get this error:

Log onto incoming mail server (POP3); Your e-mail server rejected your login with Secure Password Authentication (SPA).  Verify the account properties in Account Settings.

If I try it without SPA I get:

Log onto incoming mail server (POP3): Your e-mail server rejected your user name.  Verify your user name for this account in Account Settings.  The server responed: -ERR Command is not valid in this state.

The username is in the form domain\username and I'm sure the username/pw are correct.

Thanks for any help on this.
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Question by:gateguard
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Expert Comment

by:rr1968
ID: 36815422
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Accepted Solution

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rr1968 earned 250 total points
ID: 36815460
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Expert Comment

by:-MAS
ID: 36815479
OPEN MMC
Server configuration->Client Access->POP3 and IMAP4->POP3

right click on POP3->properties-> select 'Plain Text Logon.....'
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Assisted Solution

by:-MAS
-MAS earned 250 total points
ID: 36815489
Restart transport service
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LVL 25

Expert Comment

by:-MAS
ID: 36815504
OPEN MMC
Server configuration->Client Access->POP3 and IMAP4->POP3

right click on POP3->properties->Authentication tab -> select 'Plain Text Logon (Basic Authentication).....'

Restart 'Microsoft Exchange Transport' service
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Author Comment

by:gateguard
ID: 36815681
I tried both the plain text and the plain text Integrated Windows and I still get this error:

Log onto incoming mail server (POP3): Your e-mail server rejected your user name.  Verify your user name for this account in Account Settings.  The server responed: -ERR Command is not valid in this state.

POP3 is enabled for the user I am testing (under user properties).

I restarted both the Transport and the POP3 services.

The Send Test Email passed, it's the email retrieval that is failing.
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Author Closing Comment

by:gateguard
ID: 36919239
Nothing worked but the question seems abandoned and rather than try to revive interest in it I'm just going to close it.

A couple of things have changed in the results I get on this problem so I think it would be best for me just to post a new question with the new situation.

I still can't do pop mail using this server, however.
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