Get Users From Email But Dont Work lol

Import-Module ActiveDirectory
function Write-Visible {
   param($givenObjects)

    foreach ($givenObject in $givenObjects) {
        $myGivenObj = New-Object PSObject -Property @{ Object=$givenObject }
        Write-Host -InputObject $myGivenObj
   }
}
$i=1
$UsersMail = @("toto@titi.fr","titi@titi.fr")
foreach ($UserMail in $UsersMail) {
    $selectedFilter = "sAmAccountname -eq ""$UserMail"""
    $UserList = Get-ADUser -filter $selectedFilter
    Write-Visible($UserList)
    $userTab += $UserList
    $i++
}
Write-Host $userTab