The greymail options have three categories, BULK, Marketing and Social Media.
I am looking for an official description of each and any additional details on how they are identified.
I found a Marketing description from an old CISCO technote but I cannot find anything describing Social Media or Bulk.
I understand what Social Media is but what is it from the perspective of an ESA? Which Social Media is included, etc...
I also understand the word and concept of "BULK" but would like the distinction between BULK and Marketing email.
Marketing Technote => http://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/118412-technote-esa-00.html