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ssl certificate for exchange

Posted on 2012-04-12
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Last Modified: 2012-08-13
i ordered, paid, and installed (followed step by step instructions) a SSL certificate for exchange 2010. When I try to install outlook 2010 - i get an error message saying "the name of the security certificate is invalid or does not match the name of the site."

what should i do? this is the reason i bought the SSL to avoid the annoying pop ups

screen shot attached.
cert.PNG
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Question by:fstinc
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Expert Comment

by:Anuroopsundd
ID: 37840845
If you click on the view certificate is it the right certificate what you configured?
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Author Comment

by:fstinc
ID: 37840853
yes.
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Expert Comment

by:Kent Dyer
ID: 37840855
is this a "site-wide" cert?  Or is this specific to a server?  Reading: exchange.fst.lan really sounds like an "internal" behind-the-scenes lan or server name.  However, are you really dealing with a server name cert, or an Exchange server cert?  In other words, if your e-mail address is jdoe@company.com, shouldn't the cert be exchange.company.com and not exchange.fst.lan?  Look at your existing cert and check it's detail either in Internet Explorer on your Exchange server or through the MMC Snapin for certs - most likely the old one is a trusted cert..  You can download it and view it locally or get the details from your server.  I know there used to be the old tool certutil that may help too.  You may need to go back to the vendor have them re-generate the cert for you depending on your findings.

HTH,

Kent
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Author Comment

by:fstinc
ID: 37840864
yes, exchange.fst.lan is the fqdn of my local server.
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Expert Comment

by:Kent Dyer
ID: 37840901
Is the cert exactly the same as your old one?  Did you switch vendors?

Kent
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Author Comment

by:fstinc
ID: 37840903
I had a self assigned which i deleted. Amd imported new
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Expert Comment

by:chakko
ID: 37841209
please take a look at this tool to help generate the proper command for a CSR.

When you created your SSL did you put multiple names, or did you only put the exchange.fst.lan name?  in the above page, the extra names would go in the Subject Alternative Names area.

You want an SSL with the multiple names (a UCC/SAN type of SSL certificate) to make things easier for yourself.
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Author Comment

by:fstinc
ID: 37841217
yes, i included exchange.fst.lan as part of the ssl cert.

when i setup outlook (internally/externally) the domain is always exchange.fst.lan.  I found that externally outlook/configuration works just fine. But connected to the internal network is when i get that error message - assuming because exchange.fst.lan is the local server so it can't process the SSL?

what's the workaround here?
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Expert Comment

by:Rajith Enchiparambil
ID: 37841982
Is the new cert assigned for services, like IIS?

Did you restart Exchange transport service after importing the cert?
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Accepted Solution

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millardjk earned 500 total points
ID: 37842171
What "Subject Alternative Names" are configured for the cert? You only showed us the common name.

Exchange 2007 and 2010 both require certificates for the FQDN, the "public" name (eg, mail.company.com) and the "autodiscover" FQDN (eg, autodiscover.company.com)

When you first start Outlook 2007 or Outlook2010, it validates your settings by contacting the autodiscover URL. You appear to have the DNS configuration correct, because it's getting to the right host, but without the cert for the autodiscover URL, you get the cert error.

You can provide the cert on the URL by using multiple standard certs, or a single "advanced" or "UC" cert that has both the common name and multiple SANs.
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