noun
postage cost; mailing cost
Refers to the expense of sending something by mail or courier.
この小包の郵送費はいくらですか。
How much is the postage for this parcel?
郵送費は商品の価格に含まれています。
The mailing cost is included in the product price.
郵便料金 refers to postal rates or fees in general, while 郵送費 emphasizes the cost incurred for a specific mailing.
Compound of 郵送 (mailing) + 費 (cost, expense).