Applies to Barracuda Backup Service using WebDAV for Message Level backups of Exchange 2003 or 2007. Does not apply to Message Level backups using EWS in Exchange 2007 or 2010
If your backup reports show
warnings that messages in a user or set of users are not being
backed up, the messages in question have may have a plus-sign (+) character
in them. To work around this, do the following:
On the Outlook Web Access server run the following command at the command prompt to get a list of virtual hosts and directories on the web server.
# C:\Users\administrator>%windir%\system32\inetsrv\appcmd list site SITE "Default Web Site" id:1,bindings:http/*:80:,https/:443:,state:Started)
Now that you know the name of the Site on the IIS server, you can run the command to disable the Double Escaping Request Filtering.
%windir%\system32\inetsrv\appcmd set config "Default Web Site/Exchange" /section:system.webServer/Security/requestFiltering -allowDoubleEscaping:True /commit:apphost
This will take immediate effect on the web server and will save it to be persistent.
This command must be run on all servers that have mailboxes on them, as web services are installed there and used by the OWA server to access mailboxes on that server.
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