Which preposition to use with sender

of Occurrences 12%

He was particularly designated by the Greeks as "the sender of dreams," [Greek: Oneiropompon]; nor could any other deity boast of so great a number of those oracles.

to Occurrences 1%

Letters take from three weeks to three months to get from the sender to the prisoner to whom they are addressed.

Which preposition to use with  sender