The "Upgrade And Verify Your Email Account Below Within 24Hours" email alert below which claims that the recipients' accounts have been blacklisted and will be closed, is a phishing scam created to steal Microsoft usernames and passwords. The email message was not sent by Microsoft, but by cyber-criminals, whose intentions are to hijack email accounts and use them for malicious purposes. So, recipients of the same email message are advised to delete and do not follow the instructions in it.
The "Upgrade And Verify Your Email Account Below Within 24Hours" Phishing Scam
Subject: Verify Account Urgent!
From: hotmail.com - no-reply@synfil.de
Date: Wed 5/8/2019 2:58 PM
Hello
upgrade and verify your email account below Within 24hours
Verify Account
(c) 2019 hotmail.com Privacy & Terms
The link in the email message goes to a fake Outlook or Microsoft website, which will attempt to trick the cyber-criminals' potential victims into entering their usernames and passwords on it. If the potential victims enter their Microsoft Outlook, Hotmail, Live usernames and passwords on the fake website, it will be sent to the cyber-criminals behind the email scam, who will use the information to hijack their accounts.
If you have received the same email message, please go directly to your email account instead of clicking on the links in the email message. And, if there is anything wrong with your account, it will be shown to you after signing in. If you were tricked by the phishing email, please change your Microsoft Hotmail/Live/Outlook immediately. If you are unable to, click here to report it to Microsoft.