A question on the MsExchange.org forum made me thinking. Somebody wandered if it was possible to change the default of the Send Out of Office auto-replies to External Senders option which is on to off.
To change this you must change the file on the CAS server, in this case it’s the file oofoptions.aspx which can be found in the folder ClientAccess\Owa\forms.
Search for the following line:
<input type=”checkbox” id=”chkExtEnbl” class=”chk”<%=(ExternalEnabled && !ExternalBlocked) ? ” checked” : “” %>>
and change it to:
<input type=”checkbox” id=”chkExtEnbl” class=”chk”<%=(ExternalEnabled && !ExternalBlocked) ? ” unchecked” : “” %>>
Keep in mind that after each Rollup installation you must apply the change again because the rollup may overright the file.
Nice that users can define Out Of Office settings but what can you configure as an administrator for the Out Of Office settings. More then you think, besides this there are a few nice features in Exchange 2007 which prevent unnecessary OOF messages.
In this tutorial I will explain the administrator side of OOF, I will explain how you can configure it per remote domain and per user.
Normally the Out of Office functionality isn’t really hard and you won’t have a lot of issues with it. But when you have issues they can be quite complicated. For example, if Out of Office is enabled but it doesn’t send the message to the sender. There are a few things you should check in this case. The problem is most times caused by the rule entry in the users mailbox. To clean this up you should start Outlook with the /cleanrules option. When this doesn’t solve the issue you will have to do some Exchange “hacking”, this can be done with two tools:
With these tools you can have a look at the mailbox of the user on database level. With MFCMapi you can check is OOF is really enabled. When you discover that the rules might be corrupted you will have to use MDBVU32 to solve it. With this tool you can remove the corrupted rules so the user can recreate them manually.
When you would like to have a goo manual you should have a look at the site below.