This is the busiest shipping day of the year for FedEx.

The world’s second-largest delivery company expects to handle 19 million packages today, up 10 percent from the busiest day last year.

“Increased e-commerce spending is directly contributing to record holiday FedEx volumes,” the company said in a statement. Online holiday sales are expected to jump 17 percent according to eMarketer.

FedEx founder and CEO Fred Smith expects overall retail spending for the holidays to rise between 3.5 to 4 percent, only a modest gain compared with last year.

For shipping deadlines for FedEx click here.

For shipping deadlines for The U.S. Postal Service click here.

For shipping deadlines for UPS click here.