Use multiple incoming e-mailadresses

Use multiple incoming e-mailadresses

Today our IT-department use SDP for support. But in an effort to bring more of the oganization into ITIL our HR-department wantto have a servicedesk. The thing about this is that HR handles sensitive cases and our technicians are not supposed to see any of it. So we need a way to sort and categorize these tickets automatic via Business Rules or some other way.
In Business Rules you can set up rules for based on the mail header(Subject, From, CC and To). The problem is that as far as I have seen it is not possible to add another incoming email-address. I figure it should somehow be possible to have something like helpdesk@domain.com and HR@domain.com and depending on which one I email Business Rules sends them to the correct technician or category.

Is there any way to set this up?
Setup:
ServiceDeskPlus
Exchange 2007






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