The findings from a study conducted by FreshMinds revealed that 43% of those surveyed placed their trust in the door drop collateral, compared to a 40% trust rating of radio marketing.
Equally, only seven per cent of those surveyed demonstrated confidence in unsolicited emails while a mere five per cent trusted online pop-ups.
According to the company's findings, door drops are considered to be a "more legitimate type of voucher" for potential customers.
Philip Ricketts, Royal Mail head of strategy for the sales and marketing for door to door, said engendering trust with consumers was vital for brands to sell successfully.
"What’s clear is that consumers are still nervous by the ‘virtual’ nature of online when it comes to trust, particularly when receiving and redeeming vouchers," he added.
Lance Hill, sales and marketing director at 4DM Group, said the findings resonate with the company's experience with some of its direct mail clients.
He said: "We produce a large quantity of direct mail that contains vouchers. One security conscious client is aware of the possibility of counterfeiting vouchers which would be much easier to replicate online.
"The vouchers we produce do have security features, although nothing clever, which means they cannot be replicated due to their highly personalised nature."
According to Hill, click through rates on unsolicited emails continue to decline due to the high volume of e-mails an individual will receive.
"Where email is powerful and proven to work is when it is used in conjunction with a piece of targeted direct mail as a follow up. In this instance we have seen campaigns have significant uplift in response," he added.
Tweet
UK adults trust door-drop vouchers more than online equivalent, new research claims
UK adults trust printed door-drop leaflets or vouchers more than any other medium, according to new Royal Mail research.