noun
non-correspondence mail courier service
A specific service name (often associated with Yamato Transport) for sending small parcels, documents, or goods that are not classified as regular correspondence mail. Typically cheaper than standard takkyubin but with size/weight limits and no insurance for cash or valuables.
この書類はメール便で送ります。
I'll send these documents by non-correspondence mail courier service.
メール便は普通の宅急便より安いです。
The non-correspondence mail courier service is cheaper than regular takkyubin.