I'd like to take a different approach to this :) I would like to answer this with the tenets of Christian faith in mind.
In Christian faith, one has the freedom of their own soul. They may do with it as they wish. They may either worship God and give their soul to Him or they can refuse to worship God and give their soul to Lucifer.
This principle alone, states that you can't curse someone else's soul and send it to Hell, because only the soul itself can make that decision.
Another problem this can raise is that, if the Gods and Godesses don't even just take souls as they please, what gives us, mere humans, that authority?
So yes, it is possble to curse someone, but you can't send their soul to Hell :)
I hope this answered your question and helped you :) Blessings!