What does the Email Author Date ID contain?

The Email Author Date ID contains a string of hashes corresponding to email segments. This is relevant because the Email Author Date ID serves as a unique identifier for different components of an email. By using hashes, the system can efficiently manage and track various parts of email correspondence, ensuring data integrity and allowing for precise referencing of specific segments without exposing the actual content. This method of utilizing hash strings also aids in enhancing performance when processing and searching through large volumes of email data, as it enables quicker retrieval based on the identifiers generated from the email segments.

The other options refer to elements that do not accurately represent the information contained within the Email Author Date ID. Keeping the focus on hashes allows for an efficient identification and categorization mechanism that is crucial in data management systems, especially in contexts like email archiving and auditing.