Livelink will be providing a series of automated and blast email marketing campaigns covering news of latest clothing ranges and special offers.
It will also be conducting abandoned basket campaigns to help bring back shoppers who have not completed the online checkout.
Dead Legacy, which launched two years ago, now supplies to a number of high street stockists as well as overseas.
Joint founder of Dead Legacy, Danny Costello, said: “We’re keen to encourage customers to shop direct from the website and, with the help of Livelink, we are confident that we can run email marketing campaigns that are fresh and relevant and will build momentum.”
PK Vaish, managing director of Manchester-based Livelink, added: “We’re looking forward to demonstrating a reduction in spam and customer churn as well as improved customer retention levels.”
The agency’s other clients include Elliott Modular Buildings, Manchester United Soccer Schools, Weber Shandwick and Wilmington Group.