Hello,
You may only set OOF or write a script to realize it.
Pelase configure your remote domains. Please check "Allow Automatic Replies" under Message Fromat properties and check "Allow external out-of-office messages only" under General properties.
Here is the article for your reference. (Note: It also applies to exchange 2007)
Understanding Remote Domains
http://technet.microsoft.com/en-us/library/aa996309(v=exchg.141).aspx
And then do it as you provide the thread:http://social.technet.microsoft.com/Forums/en-US/4501ddee-a689-40a2-9c4b-eb2fbe5d5f8d/auto-reply-using-outlook-2007-and-exchange-2007.
If you have any feedback on our support, please click
here
Cara Chen
TechNet Community Support
