Hilton International promotional emails Sent to 8 local markets in 5 languages, the Hilton promotional e-mail marketing campaigns need to create sales interaction, strengthen relationships and brand positioning. The promotional offers are embedded in an informational wrapping, creating added value for the audience. The attractive design and well-balanced content increase usability and through that increases response. Result: an average increase of response by 23%. Hilton Summer promo 01 Hilton Summer promo 02