Remove-DistributionGroupMember

1st Microsoft Example

Remove-DistributionGroupMember -Identity <DistributionGroupIdParameter> 
[-BypassSecurityGroupManagerCheck <SwitchParameter>] 
[-Confirm [<SwitchParameter>]] 
[-DomainController <Fqdn>] 
[-Member <GeneralRecipientIdParameter>] 
[-WhatIf [<SwitchParameter>]] 
[<CommonParameters>]