E MAIL triggering to vendor on saving a PO

I have the follwing scenerio,

A PO made refering to a contract.

Vendor master maintained with one e mail address, In contact a different e mail address maintained.

If we create PO refering to conract the e mail will be sent to Contract e mail address? (The standard SAP behaviour)

Only one partner function is maintained in vendor matser VN.

Can any one can help me on this.

Karthik