Please see the full documentation of each keyword for platform availability.

Keywords not hyperlinked are obscure, undocumented z/VM-only settings.  If you are a z/VM site and need help with these settings, please contact L-Soft customer support.

If the "Introduced" column is blank, the keyword existed prior to LISTSERV 1.8d (13).

Keyword

Introduced

Abstract

SEARCH_DISABLED

1.8d (13)

Determines whether or not the non-z/VM SEARCH command is enabled.

SEARCH_PRELOAD

16.5

(HPO) Space-separated list of list names for which search-related files should be preloaded

SIGNUP_ENCRYPT_PASSWORDS

15.5

Boolean value determining whether or not personal LISTSERV passwords are encrypted in the SIGNUP files.  Turned ON by default starting with 15.5.

SMTP_FORWARD

1.8b (11)

The Internet hostname of the server to which all outgoing SMTP mail should be forwarded for delivery

SMTP_FORWARD_n

1.8b (11)

Defines n number of "SMTP workers" used to split up the SMTP forwarding load

SMTP_LISTENER_IP


(Windows) Dotted-decimal IP address which sets the IP address to which the SMTPL.EXE "listener" will bind at boot time.

SMTP_LISTENER_PORT


(Windows) Integer value which sets the port number to which the SMTPL.EXE "listener" will bind at boot time

SMTP_RATE_LIMIT

15.0

(HPO non-z/VM only) Defines bandwidth limits for the server.  Typically used with delivery pools, but can be used to set a server-wide bandwidth limit.

SMTP_RESET_EVERY

1.8b (11)

Directs LISTSERV to reset open SMTP connections every n minutes

SMTP_SPAM_CHECK

16.0

Configuration variable for SMTPL-level spam checking.

SMTP_SPAM_EXIT

16.0

Configuration variable for SMTPL-level spam checking.

SMTP_SPAM_THREADS

16.0

Configuration variable for SMTPL-level spam checking.

SORT_RECIPIENTS

1.8c (12)

Determines whether or not to sort recipients in the RFC821 mail envelope

SPAM_ALERT

14.2

Determines whether or not spam reports are sent to the postmaster

SPAM_DELAY

1.8c (12)

Sets the server-wide value (in minutes) for the anti-spam quarantine period

SPAM_EXIT

14.3

Sets the name of the user-provided exit program used to call a third-party spam scanner.

SPAM_FEEDBACK_ACTION

16.0

Determines the action(s) to take when LISTSERV receives spam complaints via AOL feedback loops

SPAM_FEEDBACK_PROBE

15.5

Determines whether to enable AOL Feedback Loop Auto-Processing.

SPAM_MAXSIZE

14.3

Sets the maximum size, in kilobytes, of any message to be handled by the spam scanner.  Messages over the specified size are not scanned.

Spam Blackists and Whitelists

14.3

How to set up spam blacklists and whitelists (14.3)

SSI


Flag telling LISTSERV that it runs in a SSI system

STARTMSG


Recipients of start and stop messages

SPOOL_CLEANUP

16.0-2017a

Determines how often (in days) LISTSERV runs its spool cleanup routine

STOREPW


The password to be used by postmasters when executing CP/CMS commands and  when storing  files in  the server by  means of  the PUTC command

SYSTEM_CHANGELOG

1.8d-2000b (13.2)

Enables a system-level changelog