Get-Aduser -filter Get-Content CSV -Property (EmailAddress)

I have a spreadsheet of a bunch of AD users with the following columns. Column A (First Name) Column B (Last Name) Column C (Email Address). How can i create a script that will -Filter out the email address of each AD Object and give me the SamAccountName property of each user exported back out to a CSV. 

I thought  it would be 

$email = Get-Content -Path c:\users.csv

Get-AdUser -filter -Property EmailAddress 

that obviously doesn't work. 

So anyway i can provide the emailaddress data point and it spit me  back out the samaccountname of all 600 users?