The definitive list of what S120 properties are available can only be found by entering [[S120:help]] wherever you want to use it. Then take whatever action is necessary to get to the page or autoresponder that you have entered the S120:help tag on. That will give the list of what values are actually available where you are attempting to use the tag. Below is the current list of known S120 tags for this use.

S120:dc tags do not work in this particular Donations autoresponder, but the following do: