You subscribe, unsubscribe, set various options, and otherwise communicate with the mailing list server by sending email containing commands.  These commands must be in the message body, not the subject.

All commands can be sent to the general list server address: autoshare@lists.pensive.org.  You can also send commands to an address specific for a list, which is the list name with -request appended.  When sending commands to a list-specific address, there is no need to include the list name in the command.  For example, to subscribe to the Qpopper mailing list, you could either send the command subscribe qpopper to autoshare@lists.pensive.org, or send the command subscribe to qpopper-request@lists.pensive.org.

Here are the commands you can send:

General Commands

Command	Description
HELP	Returns a list of available commands (the information you are reading now).
RELEASE	Returns information about the list server software.

Subscription Commands

Command	Parameters	Description
SUBSCRIBE	Mailing List (unless using -request address)	Subscribes you to the specified list.
	Optionally, your full name
UNSUBSCRIBE	Mailing List (unless using -request address), or ALL	Unsubscribes you from the specified list, or from all lists.
SIGNOFF
SET	Mailing List (unless using -request address), or ALL	Sets an option (see next table for option names and descriptions)
	Option
QUERY	Mailing List (unless using -request address), or ALL	Shows the current state of your options.
WHICH		Shows to which lists you are subscribed.

Options (for use in SET command)

Option	Description
ACK	You receive copies of your own submissions.
NOACK	You do not receive copies of your own submissions.
CONCEAL	Your name will not be disclosed in a REVIEW command (not all lists permit REVIEW).
NOCONCEAL	Your name will be disclosed in a REVIEW command (not all lists permit REVIEW).
DIGEST	List submissions are batched and sent to you as a group in one email message.
NODIGEST	List submissions are sent to you individually, as they are generated by their authors.
MAIL	You receive list submissions.
NOMAIL	You do not receive list submissions (but remain subscribed). This may be useful if you want to be able to post from multiple addresses -- set NOMAIL for all but one.

List Commands

Command	Parameters	Description
LIST		Returns information about the public lists maintained by this server (there are private lists as well, which are not shown).
REVIEW	Mailing List (unless using -request address), or ALL	Shows a list's unconcealed subscribers, if permitted by the list.
RECIPIENTS
WHO
INDEX	Mailing List (unless using -request address), or ALL	Returns an index of archive files.

Addresses for this particular listserver:

Listserver:	autoshare@lists.pensive.org
AutoShare Admin:	listmaster@lists.pensive.org
List commands:	list-request@lists.pensive.org
List submissions:	list@lists.pensive.org

The software used is AutoShare—a freeware Macintosh list server. See the AutoShare home page.