Hi,
You can do this by creating a typology rule.
If you select Recipient Delivery Logs (broadLog) and then select 'DateOnly(@lastModified)' equal to 'DateOnly( GetDate())'.
You will then need to restrict the numbers of emails per customer by doing the following;
add '@status' equal to 'sent'.
You will then need to 'edit additional data' where the expression will be 'countOfPrimaryKey' equal to 2.
Once this typology rule has been created I can then be added to the relevant typologies as normal.
Hope that helps,
Dave.