Our Contribution Receipts are coming from the wrong email, how do I change that?

Here's how you do this:

1. Go to Contributions > Manage Contribution Pages
2. On the rows with the contribution pages you want to edit, click on the Configure option - a drop down menu appears - Select Thank-You and Receipting.
3. On the page that comes up, scroll down to the bottom of the page where the receipt is defined.
4. Change the appropriate email address.
5. Save your changes.