• Diyana Ahmed Ghazie

Ray Tomlinson established electronic Direct or known as EDM in the year of 1961. There are two types of EDM, which are direct mail and retention direct mail. Direct mail can be known as an email, which involves in sending a promotional message. It might be an announcement of a special offer. While retention mail is a promotional email designed only to encourage the recipient to take action (buy something or sign-up for something).
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