Question about e-mail money transfers

[OCDP]

I'm pretty new to this still.. just had a question.,

I'm buying an Aqualight Pro from another reefer, and want to pay via E-mail interac money transfer.

Does the other person need to have anything other than online banking for this to work? The reciever just has to answer my secret question and the funds are his.. then he enters in his bank card number and its transferred into his account?

Does this all sound right? Thanks.. just want to make sure I do this right from the get go.

Scott