Caution Possible Virus in emails

[Chequered Flag Racing]

Heads Up

had 2 emails over the last couple of days from

United Parcel Service [[email protected]]

message says

Unfortunately we were not able to deliver postal package you sent on July the 1st in time because the recipient’s address is not correct.
Please print out the invoice copy attached and collect the package at our office

Your UPS

both emails contained a zip file

not having used UPS I didn't open them, just DELETED them