Door drop units sent in the UK 2017-2022
Door drop marketing is unaddressed mail that customers receive directly via post. In 2020, due to the pandemic, the annual volume of door drop units sent in the United Kingdom decreased to 3.1 million units, from 4.2 million reported in 2019. In 2021 and 2022, door drops' annual volume increased again, indicating the ongoing popularity of this traditional type of marketing.
