Check For Letter In Range & Count Numbers

I need to compare for each trip whether there is a trip with Es and no Es in it and mark every line in column E with tag "Mixed Use". In the data below trip 2 has mixed use. I have attached a sample file.

Trip Employee EntertainmentMiles

Trip 1Employee 1E827
Employee 2E0
Employee 3E0
Employee 4E0
Trip 2Employee 1758
Employee 20
Employee 30
Employee 40
Employee 50
Employee 60
Employee 70
Employee 80
Employee 9E0
Employee 10E0