An electronic mailing list or email list is a special use of email that allows for widespread distribution of information to many internet users. it is similar to a traditional mailing list – a list of names and addresses – as might be kept by an organization for sending publications to its members or customers, but typically refers to four. Email tokens. the email-ext plugin uses tokens to allow dynamic data to be inserted into recipient list, email subject line or body. a token is a string that starts with a $ (dollar sign) and is terminated by whitespace..