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Check out this article, is that the specific issue you are having?<br />
<br />
<a href="http://support.microsoft.com/kb/940726" rel="ugc nofollow">http://support.microsoft.com/kb/940726</a>
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Check out this article, is that the specific issue you are having?

http://support.microsoft.com/kb/940726 [http://support.microsoft.com/kb/940726]

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certificate name needs to match what is registered. You will need to change the name and resubmit.
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certificate name needs to match what is registered. You will need to change the name and resubmit.

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externally it is registered domain.com but internally with ad it is &nbsp;domain.local
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externally it is registered domain.com but internally with ad it is  domain.local

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I am getting an error everytime i start outlook up, it is a sercurity alert telling me the name of the security certificate is invalid or does not maltch the name on the certificate.<br />
<br />
Well the name on the certificate &nbsp;is mail.domain.com but theinternal doamin that is showing on the error is servername.domain.local so the names &nbsp;do not match.<br />
<br />
My question how do i set it so i do not get this eror when starting &nbsp;up outlook on users &nbsp;machines within the domain.<br />
<br />
Back &nbsp;when they set this domain up for our company they had set it as domainname.local and not domain.com.<br />
<br />
Everything works with exchange &nbsp;and owa &nbsp;but this is just an annoyance error that wehn opening outlook but after we click yes to proceed then it does not come back to outlook is shutdown and restarted.<br />
<br />
To me it is not a major deal but for a few they seem to lose their shit over it:-)
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I am getting an error everytime i start outlook up, it is a sercurity alert telling me the name of the security certificate is invalid or does not maltch the name on the certificate.

Well the name on the certificate  is mail.domain.com but theinternal doamin that is showing on the error is servername.domain.local so the names  do not match.

My question how do i set it so i do not get this eror when starting  up outlook on users  machines within the domain.

Back  when they set this domain up for our company they had set it as domainname.local and not domain.com.

Everything works with exchange  and owa  but this is just an annoyance error that wehn opening outlook but after we click yes to proceed then it does not come back to outlook is shutdown and restarted.

To me it is not a major deal but for a few they seem to lose their shit over it:-)

Help With Exchange Server and Outlook Please

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.