Remove SecondaryOwner from site collection with powershell?

Question

Does anyone know how to remove the secondary owner of a site collection with the help of powershell?

I know how to set the SecondaryOwnerAlias with the help of powershell but so far I did not find any possibility to remove it.

Answer 1

You need to update the SecondaryContact of SPSite object.

$siteCollectionUrl = "http://sp2010:90"
$site =new-object Microsoft.SharePoint.SPSite($siteCollectionUrl)
$site.SecondaryContact = $null;

EDIT

Just ran the updated code above on my SP 2010 VM and it works perfectly fine.

Answer 2

Try this command:

Get-SPSite "http://sitename/sites/teams/*" | Set-SPSite –SecondaryOwner $null

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