To change the return address you must first click on Settings in the upper right hand corner of your NonProfitEasy screen. Once there you will appear on the System Settings page under Organization Info. Here you can change the address that will appear as the return address on the donation acknowledgment envelopes you print out. After you have changed all of the necessary information, click Save.
Note: You must first log out and log back in before these changes will be in effect.
Also, when sending donation acknowledgments you can have the Return Sender appear blank if you already have pre-printed envelopes by clicking No when the, "Would you like to print return address and sender name on the envelope?" pop up.