Server Configuration > Client Access > Outlook Web Access > Allow List
Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1
Use the Allow List dialog box to specify the types of files and the MIME types that you want to allow in Microsoft Outlook Web Access. The options that you specify in the Allow list override the settings that you specify in the Block list and Force Save list.
The settings for direct file access are divided into public computer file access settings and private computer file access settings. You can configure these settings on either the Private Computer File Access tab or the Public Computer File Access tab. However, you cannot have different settings for each tab.
Enter the file extensions you want to allow, one at a time:
Use this section to do the following:To add a file name extension, enter it in the appropriate box, and then click Add. File name extensions must be preceded by a period (.), for example, ".exe".
To edit a file name extension, select it, and then click Edit.
To remove a file name extension, select it, and then click Remove.
When you have finished modifying the lists of file name extensions, click OK to save your changes or click Cancel to discard your changes and return to the previous window.
Enter the MIME types of files that are allowed:
Use this section to do the following:To add a MIME type, enter it in the appropriate box, and then click Add.
To edit a MIME type, select it, and then click Edit.
To remove a MIME type, select it, and then click Remove.
When you have finished modifying the MIME types, click OK to save your changes or click Cancel to discard your changes and return to the previous window.
For More Information
For more information about how to configure file access for Outlook Web Access, see the following topics: