Hello Mart,
>> I receive orders from across the country (Australia)
Ok ... great.
>> each client (user) email so when they send me an email
This is the really big problem ... because a e-mail is not safe!!!
If the user have do a login BEFORE to do a order this is the better way and your request is
possible :-)
>> Is this possible with the variables function?
Yes ... login --> Order --> Response + x-Days ... is this your order process?!
Best Regards
citrixraptor