If you receive an e-mail from Payments@nacha.org it is FRAUDULANT. Do not open or respond to it; delete it.
It will have the verbiage of:
“The ACH transaction, recently sent from your checking account (by you or any other person), was cancelled by the Electronic Payments Association. Please click here to view report.
If you receive this message DO NOT forward it, DELETE the message and report it your local branch