Filter Users for Group using a wildcard

Hi

I'm trying to create a Dynamic group filter using a number from the email address, for example

New-DynamicDistributionGroup -Name "Intake2010" -RecipientFilter {(RecipientType -eq 'MailContact' -and EmailAddresses -like '10*@DomainName.com')} -primarysmtp "Intake2010@Domainname.com" 

the group creates, but is empty

anyone help?