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Exchange Server 2007 POP3 will not logon through outlook 2003.

Posted on 2009-04-08
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Last Modified: 2012-06-22
I get an error message in Outlook 2003 when setting up a mailbox user from Exchange 2007. I have the POP3 service running and I have tried to logon using "user", alias username. "domain\user", "domain\alias","domain\user\alias" and still get the same error.

What is the proper Outlook settings for Exchange POP?

The only reason I am using POP is to set up a mixed user in outlook. I need one exchange account and an additional POP email account with a different domain that I can choose a which "from" address to use within a single inbox of outlook.
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Question by:GMSMRM
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Expert Comment

by:Akhater
ID: 24136432
what is the error message ?

are you using SSL with pop3 or not ?

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Author Comment

by:GMSMRM
ID: 24137118
I was able to get the POP and IMAP mail to work in outlook 2003 by checking the SSL for incoming and outgoing mail.

Is there a way to turn off SSL on Server 2008 for POP and IMAP setup?
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Accepted Solution

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Akhater earned 500 total points
ID: 24139903
you should disable it on exchange not windows has nothing to do

In exchange 2007 management console
server config => client acces => imap & pop

right click properties on pop3 -> authentication tab => Plain text authentication

Press OK to close and restart your POP3 service
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Author Comment

by:GMSMRM
ID: 24140485
I did as you said but the account will not successfully test without selecting the SSL .
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Expert Comment

by:Akhater
ID: 24141923
if you do not select SSL what is the exact error ur getting ?

a screen shot would be great
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Author Comment

by:GMSMRM
ID: 24142363
The test run ask for user logon information (which is correct and works with SSL selected) the when I cancel I get the attached error message.
error.jpg
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Expert Comment

by:Akhater
ID: 24142770
after you've enabled basic authentication did you restart the pop3 service ?

try logging on with the UPN, that is user@domain.com
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Author Comment

by:GMSMRM
ID: 24143588
I followed your instructons perfectly and it still gives me the same error.
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Expert Comment

by:Akhater
ID: 24145391
have you tried to logon using user@daomin.com
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Author Comment

by:GMSMRM
ID: 24150761
Yes. It does not work either.
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Author Comment

by:GMSMRM
ID: 24150788
I do not know if theis will help but I just installed a SSL certificate from a CA and my Exchange OWA works properly with the certificate but now the POP3 email we are working on does not work at all now reguardless of the SSL selection option. What would cause this change?
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Author Comment

by:GMSMRM
ID: 24151111
UPDATE: I since changed the seeting in outlook to uncheck SSL for SMTP and POP3 and Checked the SPA and run a test. All the logons pass right away but fails when sending the test message.
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Expert Comment

by:Akhater
ID: 24152391
in you sending options did you check "my outgoing server requires authentication" ?
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Author Comment

by:GMSMRM
ID: 24152416
Yes.
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Expert Comment

by:Akhater
ID: 24152444
all this seems a little bit weird

have you installed the latest rollup update of exchange ?
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Author Comment

by:GMSMRM
ID: 24159292
While trying to fix this probloem everything has gone haywire. This was a test bench so I am going to start with a fresh install.
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Expert Comment

by:pcc-itsupport
ID: 24332016
I have found in my travels that when using POP3 access  on Exchange if the alias in exchange  is not the same as the AD username it will not let me logon
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Author Comment

by:GMSMRM
ID: 24335718
Using POP3 you should only have to use the logon credetials of the Incoming and outgoing server, email address and password. I exchange you must setup the account alias to be a AD user and set the default SMTP address to your email address used for that user.

For insatnce I have one user that uses 2 different domain email addresses. Here is how I configured it.

Active Directory                   Exchange Alias               SMTP
Tom                                      Tom                                  tom@mydomain1.com
Tom2                                    Tom2                                tom@mydomain2.com

You can POP both address anywhere you want. What I did for Outollook and was setup and exchange account for one, and then POP the other. This way, using Mailbox folder (not Personal Folder) the POP messages will transfer to the exchange mailbox and then can be access by logging to the single OWA account.

Hope this helps.
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Expert Comment

by:Akhater
ID: 24339654
thank you for this update
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