An indirect signature required by FedEx means that the delivery driver will obtain a signature from someone at the delivery address or from somebody nearby, such as a neighbor or building manager. This is different from a direct signature required, where someone at the recipients address must sign for the delivery, and a no signature required option, where no signature is needed for the delivery. If you are not home to sign for the package, you can sign indirectly through the FedEx Delivery Manager app or on fedex.com, but you cannot sign electronically for packages requiring an adult or direct signature. You must sign in person for adult or direct signature requirements. If there is no eligible recipient at the address, FedEx may reattempt the delivery.