How to stop Outlook to ask for the password

Some easy steps to configure your Exchange 2003 and Outlook 2003/2007 with RPC/oHTTP:

Setting up RPC over HTTP

1. Sign server with the certificate (run SBS wizard and assign new certificate which is FQDN. E.g. mail.server.com)

2. Enable server firewall to allow Outlook via the Internet (in the same wizard)

3. Go to https://FQDN/exchange from external location and export certificate to the file. (or retrieve it from \\server\ ClientApps\SBScert\sbscert.cer if connected through LAN). On Vista run IE as Administrator.

4. Import certificate into Trusted Root Certification (on Vista show physical stores and select Local Computer)

5. Make sure Outlook is connected to Microsoft Exchange server. Enable HTTP connection. With following settings:

Make sure NTLM is selected. Screenshot of typical configuration is presented below.




















6. On the server in IIS go to Default Web Site and properties of RPC. In directory security make sure that only Integrated windows authentication is ticked. Everything else should be unticked. (this allows outlook not to ask for the password)

7. In IIS –Microsoft-Server-ActiveSync –directory security- allow all IP’s
(for Nokia Mail for Exchange SSL sync)

8. In IIS –>IISADMPWD –> directory security, -allow all IP’s so it is possible to change password through OWA, directory security –> integrated. (this step is required to enable your users to change their password)

Microsoft Outlook 2003/2007/2010 RPC over HTTP. Exchange 2003/2007/2010. Central Scotland. Stirling, Glasgow, Edinburgh. www.lanos.co.uk