Question

Certificate prompt on exchange 2007

Asked by: jason2302

Hi, we have an echange 2007\outlook 2007 environment. Have setup an SSL certificate for OWA access for remote.domain.com. When outlook clients connect internally using the server internal hostname of server.domain.com they are prompted that the certificate is incorrect ie remote.domain.com does not match server.domain.com. How can i stop this from happening? Can i disable the certificate for internal access? Otherwise i am going to have to connect the internal clients using remote.domain.com to match the certificate.
thanks, Jason

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Asked On
2009-10-30 at 14:05:07ID24859719
Tags

office 2007

,

exchange 2007

Topic

Exchange Email Server

Participating Experts
3
Points
250
Comments
4

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Answers

 

by: MesthaPosted on 2009-10-30 at 15:35:12ID: 25707215

Is this SBS 2008?
It should have setup your server so that remote.example.com resolves to the server.
You cannot disable the use of SSL in Exchange 2007, the whole product is based around it.
Another option would be to change the single name SSL certificate for a SAN/UC certificate with the additional names in it.

I have a guide on how to do that here:
http://blog.sembee.co.uk/archive/2008/05/30/78.aspx

Simon.

 

by: SatyaPathakPosted on 2009-10-30 at 17:44:46ID: 25707799

The easy way to fix Exchange 2007 Cert errors with Outlook 2007&
All code lines wrapped, for your screen's pleasure.

New-ExchangeCertificate -GenerateRequest -domainname mail.example.com,autodiscover.example.com,
servername.example.local,autodiscover.example.local -FriendlyName mail.example.com -privatekeyexportable:$true -path c:\cert.txt


This creates a new request and puts it in cert.txt. Send this to an online CA, but they MUST support subject alternative name option or else youll keep getting errors on the internal hostnames.
You can self-sign the cert against an internal (Microsoft) CA  use Web Server template, and save it in DER format. Then use this:

Import-ExchangeCertificate -path c:\cert.cer


This makes Exchange know about the cert. Make note of the Thumbprint as youre going to need it in a second for this:

enable-ExchangeCertificate -thumbprint THUMBPRINT_HERE -services "SMTP,IIS,IMAP,POP"

http://episteme.arstechnica.com/eve/forums/a/tpc/f/12009443/m/591006693831

 

by: Raheem05Posted on 2009-10-30 at 18:01:45ID: 25707864

 

by: jason2302Posted on 2009-10-31 at 05:23:44ID: 31648226

Thanks Raheem, the article http://support.microsoft.com/kb/940726

fixed all my issues....thanks!

20120131-EE-VQP-002

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