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Auth on sbs2008 smtp

We have a sbs2008 server. Last night it did some hosted and no longer gets incoming email. I have done a test and when telnet  using port 25 into it it asks for a password. Is there an easy way to remove this.
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q2q
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q2q
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1 Solution
 
Raheman M. AbdulSenior Infrastructure Support Analyst & Systems DeveloperCommented:
Have you checked your router/firewall to make sure port 25 is still forwarding to the correct IP address?

Check these services are running:  
http://msmvps.com/blogs/bradley/archive/2009/06/05/default-sbs-2008-running-services.aspx
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q2qAuthor Commented:
Yes it still forwards. I have tested public and private address of server and still asked for password.
Damn microsoft updates.
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Raheman M. AbdulSenior Infrastructure Support Analyst & Systems DeveloperCommented:
I seem to recall this is a problem with the authentication mode on Companyweb, and you need to change the authentication method rather than recreate the web site.

This URL may help: http://support.microsoft.com/kb/961143

Alternative:
I have an article here on how toresolve the common causes.  You might want to try the kernel mode authentication first: http://www.experts-exchange.com/articles/Software/Server_Software/Email_Servers/Exchange/Outlook-continually-prompting-for-username-and-password.html

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Raheman M. AbdulSenior Infrastructure Support Analyst & Systems DeveloperCommented:
Go into the SBS Console and change/update all users security settings.
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q2qAuthor Commented:
I now have it working.
If anyone else every has the issue open exchange control panel and go to
Server config > hub transport and adjust the default transport at the bottom of the screen.
The on the auth tab untick erverything except TLS and basic auth.

Will then work fine.
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q2qAuthor Commented:
ms updates must have added additional security over night.
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