Add an email to outlook distribution list using powershell - email

Question

I just create a new distribution list on Outlook byt he following script
$outlook = new-object -com Outlook.Application
$contacts = $outlook.Session.GetDefaultFolder(10)
$dl = $contacts.Items.Add("IPM.DistLIst")
$dl.DLName = "Group A"
$dl.Save()
and I Have an e-mail address "manager#abc.com" with name to be "manager"
how do i use powershell to add this to the newly created distribution list?
I have to use powershell due to some reason, and I have tried this:
Add-DistributionGroupMember -Idneity "Group A" -Member "manager#abc.com"
But gives this error:
The term 'Add-DistributionGroupMember' is not recognized as the name of a cmdlet, function,
script file, or operable program.
Please help
[UPDATE]
Now I have a script that works:
$outlook = new-object -com Outlook.Application
$contacts = $outlook.Session.GetDefaultFolder(10)
$session = $outlook.Session
$session.Logon("Outlook")
$namespace = $outlook.GetNamespace("MAPI")
$recipient = $namespace.CreateRecipient("John Smith#abc.com") # this has to be an exsiting contact
$recipient.Resolve() # check if this returns true
$DL = $contacts.Items.Add("IPM.DistList")
$DL.DLName = "test dl"
$DL.AddMember($recipient)
$DL.Save()

Answer 1

AddMember only allows to pass a Recipient object as a parameter: call Application.Session.CreateRecipient("manager#abc.com") / Recipient.Resolve / DistListItem.AddMember(Recipient).
If you need to add a contact directly, you can use Redemption (I am its author) and its RDODistListItem.AddContact method.
UPDATE: In Redemption, the following code adds a one-off member to a new DL list:
set Session = CreateObject("Redemption.RDOSession")
Session.MAPIOBJECT = Application.Session.MAPIOBJECT
set Contacts = Session.GetDefaultFolder(olFolderContacts)
set DL = Contacts.Items.Add("IPM.DistList")
DL.DLName = "test dl"
DL.AddMember("test#dimastr.com")
DL.Save