The fake emails are phishing scams (see sample below), and online users who have received them are asked to delete them instead of following the instructions in them.
The "(WNDA) World National Delivery Authority" Phishing Scam
From: Mr Lawrence Green Paul <usoffice.@mint.ocn.ne.jp>
Date: Sat, Mar 24, 2018, 12:35 AM
Subject: Attention Email Owner!
U.S Department of State
2201 C Street NW
Washington, DC 20520.
This is from (WNDA) World National Delivery Authority . We wish to inform that your consignment box worth $25.3 million usd has been waiting under our custody and it will be delivered to you as soon as you comply with us
Reconfirm your mailing address for the urgent delivery immediately.
Zip / Postal Code:
Office Address: no
Mr Lawrence Green Paul
My Office phone;(202) 524-2086