Disable throttling policy for an user

Hi,

We are running Exchange 2010 and I need to make sure that a particular user can send out about 300K emails (marketing emails for users who have opted in).  I need about 100 emails to o out per minute but exchange is throttling it at 20 emails going out.  Is there a way to temporarily disable any throttling for the user?  Please let me know.

I have already run: Set-ThrottlingPolicy NewPolicy -RCAMaxConcurrency $null -RCAPercentTimeInAD $null -RCAPercentTimeInCAS $null -RCAPercentTimeInMailboxRPC $null -EWSMaxConcurrency $null -EWSPercentTimeInAD $null -EWSPercentTimeInCAS $null -EWSPercentTimeInMailboxRPC $null -EWSMaxSubscriptions $null -EWSFastSearchTimeoutInSeconds $null -EWSFindCountLimit $null

and am still getting about 20 emails to go out per minute.  I have also changed the MessageRAteLimit to 1000 and recipient rate limit to 500,000.

Thanks in advance,

Allie

TS_IT