Setting Journal Suspense Tolerance limit

We have a large external interface file that sometimes creates journals that are out of balance by a few pennies.  We'd like to allow those journals to go ahead and post (with any variance going to a suspense account), but we want to be able to set a limit on the acceptable out of balance amount.  In other words, we don't want to change the settings and allow journals to post which are out of balance by hundreds or thousands of dollars.  Ideally, journals from this source would autopost if they are balanced, and post any variance to a suspense