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Bizarre Authentication Problem

Posted on 2013-06-29
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Last Modified: 2013-07-02
I am not able to successfully authenticate anyone in the office to their Outlook pop account. In addition to not being able to authenticate to the pop servers web interface.  Try this anywhere outside of the office and all accounts authenticate fine.
When I tracert to mail server I end up at correct IP address.
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Question by:scoker
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Expert Comment

by:yo_bee
ID: 39288069
Are there any event logs on the client,exchange or DC that raise any attention?

Can you supply some details about your infrastructure (i.e.  DC and mail on the same server)
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Author Comment

by:scoker
ID: 39288090
It sbs2003 but we never hosted our own mail. I will check for logs. The weird thing is the web portal to the pop server also fails.
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Expert Comment

by:yo_bee
ID: 39288154
Is this internal to internal or external to internal?
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Author Comment

by:scoker
ID: 39288275
Internal to external hosted mail service we use
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Accepted Solution

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yo_bee earned 1500 total points
ID: 39288278
Did your public IP address change?
Some times hosted services have allow/exclusion ip list for security measures.  If they do and your public address changed this would be the root cause. Can you confirm this?
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Author Comment

by:scoker
ID: 39288688
Yes we do not pay for a static IP it changes all the time and we did get blocked because of some malware.  But I was assured by the mail provider that we were not being blocked but maybe he was mistaken.  Has to be the reason only thing that makes sense.  I will check again thanks.
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Expert Comment

by:yo_bee
ID: 39288692
I never trust just one answer from the providers. I like to always call back and hope for a another support tech.
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Expert Comment

by:yo_bee
ID: 39293167
any head way with this?
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Author Closing Comment

by:scoker
ID: 39293768
Good call yo_bee they had blocked it
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Expert Comment

by:yo_bee
ID: 39294133
It is like I  had a similar issue once or twice.  ;)
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