If the archives will be made publi- cally available, it's a good idea to define this as 0644. Defined as 2 shows more information about the attachment files created. This is written to stdout. This specifies the number of thread levels to outline in the thread index. This specifies the default index that users can view when entering the archive.
Valid types are date, thread, author, and subject.
This is the email address used to send a new message to a hypermail archive. From,Subject,Date,Message-ID or they can be listed individually or any combination of. They can be listed individually on multiple lines or comma or space separated on a single line. They are quietly ignored. They can be listed individually on multiple lines or comma or space separated on a single line.