Email Attachment and Body Naming - powershell

Question

I am working on downloading email bodies and their attachments. I want to make sure that each sender has numbers attached to the filename to differentiate from other documents. The counter should start per each sender. For example
Sender1
Sender1-Emailbody-0
Sender1-pdf attachment-1
Sender1-jpg attachment -2
Sender2
Sender2-Emailbody-0
Sender2-pdf attachment -1
Sender2-jpg attachment -2
I am not sure of how to about it. Any help, please. Thanks
$emailQuery1 = $url + "?`$select=Id,Sender,DateTimeReceived&`$filter=HasAttachments eq true and DateTimeReceived ge " + $datetime
$emails = Invoke-RestMethod -Uri $emailQuery1 -Headers $head
## Loop through each results
Foreach ($email in $emails.value)
{
#get attachments and save to file system
$query = $url + "/" + $email.Id + "/attachments"
$body = $url + "/" + $email.Id + "/body"
$receivedtime = "/" + $email.id + "/DateTimeReceived"
$attachments = Invoke-RestMethod -Uri $query -Headers $head
$emailbody = Invoke-RestMethod -Uri $body -Headers $head
Foreach($em in $emailbody)
{
$bodyitems = $em.content
Foreach ($attachment in $attachments.value)
{
$attachment.Name
$path = $DFSPath + $recvtime +"_" + $email.Sender.EmailAddress.Address + "_" + $attachment.Name
$Content = [System.Convert]::FromBase64String($attachment.ContentBytes)
$recvtime = $email.DateTimeReceived | get-date -Format yyyyMMddHHmmss
$bodyitems | out-file -FilePath ($DFSPath +$recvtime +"_" + $email.Sender.EmailAddress.Address`
+"_emailbody-" +$Counter+".html")
Set-Content -Path $path -Value $Content -Encoding Byte
}
}
}

Answer 1

I recommend using a counting variable that gets incremented right before you save the file. Set it to 0 at the beginning of the foreach email loop, $x=0, and then put $x++ right before the Out-File command. You can then append it to the file name when saving the file.