SendDefinitionListTypeEnum

The roles a send definition list plays in a send (source, exclusion, opt-out, or domain exclusion).

Name	Description
`DomainExclusion`	Indicates domains to be excluded from sends.
`ExclusionList`	Indicates the subscriber list used to exclude an audience from a particular send.
`OptOutList`	Defines audience that has opted out of receiving more sends; refers to a publication list.
`SourceList`	Indicates list used to send to audience. The source list corresponds to a subscriber list within an account.