DHL Express customers will be able to use Singapore Post post offices as parcel drop-off points under an agreement aimed at making cross-border more convenient. In May, FedEx (NYSE: FDX) similarly made parcel drop-off services available at all SingPost POPStop service counters in dozens of retail stores. DHL Express (DAX: DHL) said Thursday it is making international shipping services available to walk-in customers at all SingPost retail outlets, after the successful completion of a pilot program at 14 l ...