Yahoo users asked to delete emails like the one below, which claim their incoming mails were placed on pending status due to the recent upgrade to Yahoo's terms. This is a because the emails are a scam being sent by cyber criminal to their potential victims. The cybercriminals trick their potential into clicking on the link in the fake emails, which goes to fake or phishing Yahoo website. Once on the fake website, Yahoo users will be asked to sign-in, but any attempt to sign-in will result in their account credentials (usernames and passwords) being sent to the cybercriminals.
Once the cybercriminals have received the account credentials, they will use it to gain access to their victims' accounts, hijack and use them fraudulently.
The "Yahoo Incoming Mails Placed on Pending Status due to Upgrade" Scam
From: AT&T ALERT! [mailto:warters763@btinternet.com]
Sent: Saturday, September 16, 2017 10:48 AM
Subject: Mail service!
ATT Yahoo! services
Dear User,
Your two incoming mails were placed on pending status due to the recent upgrade to our Terms, In order to receive the messages Update Now to login and wait for response from ATT User.