Fake notice of arrival could come into your email. It can be a scam message with forged sender details.
If you receive the scam message, do not make a mistake to open any links! It could lead to the installation of ransomware on your computer.
More information in the alert of Finnish Communications Regulatory Authority: www.viestintavirasto.fi/en/cybersecurity/alerts/2017/varoitus-2017-01.html