Distinguishing Positive from Negative result in Powershell

I would like to know if it's possible to use IF in powershell to distinguish the positive/negative results after using a bulk command.

The command-let I am using is as following

#Set matching contacts with Legacy Exchange DN from Source Forest
foreach ($contact in $LocalContacts){
    $Identity = $contact.alias

if ((Set-Mailcontact $SourceSMTP -EmailAddresses @{Add="X500:$LegacyDN"} )) {
write-host User $Contact.Name has Legacy Exchange DN added to their proxy address -ForegroundColor Green -BackgroundColor Black }else{

Write-Host User $Contact.Name Legacy has not been added successfully  -ForegroundColor Red -BackgroundColor Black
 
}
} 
}

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In this code both negative and positive results are appearing in Red with the result  "User Legacy has not been added successfully"