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Do you add a redirect from http to https for OWA?

Created on 02 May 2016 | Last updated by Tiago Araújo [SSW] on 12 Mar 2021 11:04 PM (about 1 month ago)

Do you configure redirection from HTTP to https for Outlook Web App (OWA)? To simplify OWA access for your users, you want to configure the Outlook Web App page to automatically redirect users to https. The HTTP redirect procedure in IIS Manager simplifies OWA URL and forces to SSL connection from mail.domain.com to mail.domain.com/owa .

Step 1: Use IIS Manager to simplify OWA URL and force redirection to SSL

  1. Start IIS Manager.
  2. Expand the local computer, expand Sites, and then click Default Web Site
  3. At the bottom of the Default Web Site Home pane, click Features View if this option isn't already selected
  4. In the IIS section, double-click HTTP Redirect
  5. Select the Redirect requests to this destination check box
  6. Type the absolute path of the /owa virtual directory. For example, type mail.domain.com/owa
  7. Under Redirect Behavior , select the Only redirect requests to content in this directory (not subdirectories) check box
  8. In the Status code list, click Found (302)
  9. In the Actions pane, click Apply OWARedirect
  10. Click Default Web Site
  11. In the Default Web Site Home pane, double-click SSL Settings
  12. In SSL Settings, clear Require SSL OWARedirect2

Step 2: Remove redirection from virtual directories

  1. Open a Command Prompt window.
  2. Navigate to:

    <window directory="">\System32\Inetsrv.
  3. Run the following commands:

    appcmd set config "Default Web Site/autodiscover" /section:httpredirect /enabled:false -commit:apphost 
    appcmd set config "Default Web Site/ecp" /section:httpredirect /enabled:false -commit:apphost
    appcmd set config "Default Web Site/ews" /section:httpredirect /enabled:false -commit:apphost
    appcmd set config "Default Web Site/owa" /section:httpredirect /enabled:false -commit:apphost
    appcmd set config "Default Web Site/oab" /section:httpredirect /enabled:false -commit:apphost
    appcmd set config "Default Web Site/powershell" /section:httpredirect /enabled:false -commit:apphost
    appcmd set config "Default Web Site/rpc" /section:httpredirect /enabled:false -commit:apphost
    appcmd set config "Default Web Site/rpcwithcert" /section:httpredirect /enabled:false -commit:apphost
    appcmd set config "Default Web Site/Microsoft-Server-ActiveSync" /section:httpredirect /enabled:false -commit:apphost
  4. Finish by running the command:

    iisreset/noforce.

Step 3: Test that HTTP to HTTPS redirect is working

  1. Open Internet Explorer and type in mail.domain.com
  2. Done - You are then redirected to mail.domain.com/owa

iisnoredirect
Figure: Bad Example, no redirect in place for OWA

iisredirect
Figure: Good Example, redirect from HTTP to https for OWA

Stanley SidikStanley Sidik

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