Haven't received application confirmation yet?

As the title said, at two schools, Northeastern and RHIT, I have not yet received my application ID or acknowledgment email. Is this normal? I have received it for the other schools I applied to on the exact same day. its been 6 days since I have submitted these application.

Thanks

Maybe email them? Some schools take longer than others. Some schools don’t even email at all or have portals to check info. Hard to believe in this day and age but I’ve run across a handful. Seems like northeastern should have sent an email by now. Maybe give it another day or two and then email.