Yuval Sinay MVP
MICROSOFT CORPORATION AND/OR ITS RESPECTIVE SUPPLIERS MAKE NO REPRESENTATIONS ABOUT THE SUITABILITY, RELIABILITY, OR ACCURACY OF THE INFORMATION AND RELATED GRAPHICS CONTAINED HEREIN. ALL SUCH INFORMATION AND RELATED GRAPHICS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT AND/OR ITS RESPECTIVE SUPPLIERS HEREBY DISCLAIM ALL WARRANTIES AND CONDITIONS WITH REGARD TO THIS INFORMATION AND RELATED GRAPHICS, INCLUDING ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, WORKMANLIKE EFFORT, TITLE AND NON-INFRINGEMENT. YOU SPECIFICALLY AGREE THAT IN NO EVENT SHALL MICROSOFT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY DIRECT, INDIRECT, PUNITIVE, INCIDENTAL, SPECIAL, CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF USE, DATA OR PROFITS, ARISING OUT OF OR IN ANY WAY CONNECTED WITH THE USE OF OR INABILITY TO USE THE INFORMATION AND RELATED GRAPHICS CONTAINED HEREIN, WHETHER BASED ON CONTRACT, TORT, NEGLIGENCE, STRICT LIABILITY OR OTHERWISE, EVEN IF MICROSOFT OR ANY OF ITS SUPPLIERS HAS BEEN ADVISED OF THE POSSIBILITY OF DAMAGES.
The following knowledgebase will help you to resolve issue Outlook 2007 and Exchange 2007 Certificate issue
Using Outlook 2007 and Exchange 2007 server, may produce the following error :
Information you exchange with this site cannot be viewed or changed by others.
However, there is problem with the site's security certificate.
If the Outlook 2007 client resides on a different subnet than the Exchange 2007 server,
and the router that connects from the subnet listen to TCP Port 443 (HTTPS), the auto discover
mode of Outlook 2007 and Exchange 2007 may fail due DNS name resolution issue or/and unavailable
socket on the router that can support SSL connection.
This failure occur due a certificate mismatch that Outlook 2007 try to use to create a
secure channel between the client to the server.
If you are using Cisco (For example) network equipment, you can disable the listen to TCP Port 443 (HTTPS)
by using the command:
"no ip http secure-server"
Its recommended to consulate the vendor documentation, before applying any new settings.
Also, use "NSLOOKUP" command, to verity correct DNS settings for the record:
Microsoft Exchange Server 2007
Article ID: 555842 - Last Review: 14 Feb 2017 - Revision: 1
Microsoft Office Outlook 2007, Microsoft Exchange Server 2007 Standard Edition, Microsoft Exchange Server 2007 Enterprise Edition