Recipient addressing options for CiviMail

When selecting recipients for a mailing, the main option is the list of groups/mailings. However, there are also options which affect how we select a particular address for the recipients:

• Dedupe
• Location type
• (Outside scope, but reportedly used at NYSS - send to all addresses on file)
• (Outside scope, but possibly sensible in the future - greetings!)

See also: https://civicrm.org/comment/8398#comment-8398