Customize the Outlook on the web sign-in, language selection, and error pages in Exchange 2016

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Gilt für:Exchange Server 2016

Learn how to customize the color and images of the sign-in, language selection, and error pages for Outlook im Web in Exchange 2016.

The Outlook im Web sign-in, language selection, and error pages are based on image and content style sheet (CSS) files in the themes resources folder in the Client Access (front end) services on an Exchange Server 2016 server. Outlook im Web uses only one set of sign-in, language selection, and error pages for all themes. Any modifications to those pages will be seen by all users who connect to the Exchange server for Outlook im Web.

Notes:

  • Backup the default Outlook im Web files before you make any changes.

  • Create a back-up copy of your customized files so you can reapply them after a reinstallation or upgrade of the Exchange server.

  • If you use multiple Exchange servers for Outlook im Web connections, you need to copy the modified files to each server.

For more information about Outlook im Web, see Outlook on the web in Exchange 2016. For information about creating a custom theme, see Create a theme for Outlook on the web in Exchange 2016.

  • Estimated time to complete this task: 30 minutes.

  • Bevor Sie diese Verfahren ausführen können, müssen Ihnen die entsprechenden Berechtigungen zugewiesen werden. Informationen zu den von Ihnen benötigten Berechtigungen finden Sie unter "Graphics editor" entry under “Outlook im Web Permissions” in the Clients and mobile devices permissions topic.

  • To replace the existing color with a new color, you need the HTML RGB value of the new color. You can find HTML RGB values in the topic Color Table. If you can't find the color there, you can use an image editing tool to sample a color and determine its HTML RGB value.

  • Informationen zu Tastenkombinationen für die Verfahren in diesem Thema finden Sie unter Tastenkombinationen in der Exchange-Verwaltungskonsole.

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  1. Use Notepad to open the file %ExchangeInstallPath%FrontEnd\HttpProxy\owa\auth\<ExchangeVersion>\themes\resources\logon.css.

    Note: The <ExchangeVersion> subfolder uses the syntax 15.1.nnn.nn, and changes every time you install an Exchange Cumulative Update (CU).

  2. In the logon.css file, replace the default blue color value #0072c6 with the HTML RGB value that you want to use.

  3. When you are finished, save and close the file.

Outlook im Web-Anmeldungsseite mit Elementpopups

  1. Use Notepad to open the file %ExchangeInstallPath%FrontEnd\HttpProxy\owa\auth\<ExchangeVersion>\themes\resources\errorFE.css.

  2. In the errorFE.css file, replace the default blue color value #0072c6 with the HTML RGB value that you want to use.

  3. When you are finished, save and close the file.

Outlook im Web-Fehlerseite mit Elementpopups

  1. Use Notepad to open the file %ExchangeInstallPath%ClientAccess\Owa\Current2\version\resources\styles\languageselection.css. An easy way to do this is to press the Windows key + R, and run the following command:

    Notepad.exe %ExchangeInstallPath%ClientAccess\Owa\Current2\version\resources\styles\languageselection.css
    
  2. In the languageselection.css file, replace the default blue color value #0072c6 with the HTML RGB value that you want to use.

  3. When you are finished, save and close the file.

Outlook im Web-Sprachauswahlseite mit Elementpopups

You can edit the existing image files, or replace the files with new files that have the same names and dimensions. The images are described in the following table:

 

Image File name Location Dimensions (width x height in pixels) Bit depth

1

favicon.ico

%ExchangeInstallPath%FrontEnd\HttpProxy\owa\auth\<ExchangeVersion>\themes\resources

16 x 16

32

2

olk_logo_white.png

%ExchangeInstallPath%FrontEnd\HttpProxy\owa\auth\<ExchangeVersion>\themes\resources

128 x 108

32

3

owa_text_blue.png

%ExchangeInstallPath%FrontEnd\HttpProxy\owa\auth\<ExchangeVersion>\themes\resources

300 x 76

32

4

Sign_in_arrow.png (for left-to-right languages)

Sign_in_arrow_rtl.png (for right-to-left languages)

%ExchangeInstallPath%FrontEnd\HttpProxy\owa\auth\<ExchangeVersion>\themes\resources

22 x 22

32

5

olk_logo_white_cropped.png

%ExchangeInstallPath%FrontEnd\HttpProxy\owa\auth\<ExchangeVersion>\themes\resources

265 x 310

32

6

office_logo_white_small.png

%ExchangeInstallPath%ClientAccess\Owa\prem\<ExchangeVersion>\resources\images\0 (for left-to-right languages)

%ExchangeInstallPath%ClientAccess\Owa\prem\<ExchangeVersion>\resources\images\rtl (for right-to-left languages)

81 x 26

8

To verify that you've successfully customized the Outlook im Web sign-in, language selection, and error pages, perform the following steps:

  1. Open the Outlook im Web sign-in page in a web browser. On the Exchange server that hosts the Outlook im Web virtual directory, you can test your changes by opening the URL https://localhost/owa or https://127.0.0.1/owa.

  2. If you don’t see your changes, clear your browsing history (delete temporary Internet files), and refresh the browser window.

Note: To see the effects of your changes, you can keep the .css file open and refresh the browser window after you save each change.

 
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