Delivery guaranteed within 48 hours
TNT has struck a deal with Sainsbury's to handle its bulk mail business.

About 20 million items a year of Sainsbury's mail will now be now be picked up and organised by TNT Post. The deal follows the deregulation of the postal market earlier this year. However, TNT will not actually deliver the mail to customers. Local sorting and delivering will still be done by the Royal Mail.

The service guarantees delivery to customers within 48 hours.