Users interact with Sympa, of course, when they send messages to one of the lists, but also indirectly through administrative requests (subscription, list of users, etc.).
This section describes administrative requests, as well as interaction modes in the case of private and moderated lists. Administrative requests are messages whose body contains commands understood by Sympa, one per line. These commands can be indiscriminately placed in the
Subject: or in the body of the message. The
To: address is generally the
Sympadomain alias, although it is also advisable to recognize the
From: firstname.lastname@example.org To: Sympa@cru.fr LISTS INFO Sympa-users REVIEW Sympa-users QUIT
Most user commands have three-letter abbreviations (e.g.
REV instead of
visibilityparameter (see Visibility). The
lists.tt2template defines the message returned by the
REVIEWcommand. See the review parameter.
SUBSCRIBElistname firstname name
INVITElistname user@host name
ADD, but the person specified is not added to the list but invited to subscribe to it in accordance with the subscribe parameter.
SIGNOFFlistname [ user@host ]
SIGNOFF *means unsubscription from all lists.
summarymode for the listname list. Instead of receiving email from the list in a normal manner, the subscriber will periodically receive the list of messages. This mode is very close to the DIGEST reception mode, but the subscriber only receives the list of messages. This option is available only if the digest mode is set.
nomailmode for the listname list. This mode is used when a subscriber no longer wants to receive email from the list, but nevertheless wishes to retain the possibility of posting to the list. This mode therefore prevents the subscriber from unsubscribing and subscribing later on. See the SET LISTNAME MAIL command and the reception parameter.
txtmode for the listname list. This mode is used when a subscriber wishes to receive emails sent in both format, txt/html and txt/plain only, in txt/plain format. See the reception parameter.
htmlmode for the listname list. This mode is used when a subscriber wishes to receive emails sent in both format, txt/html and txt/plain only, in txt/html format. See the reception parameter.
urlizemode for the listname list. This mode is used when a subscriber wishes not to receive attached files. The attached files are replaced by a URL leading to the file stored on the list site. See the reception parameter.
not_memode for the listname list. This mode is used when a subscriber wishes not to receive back the message that he/she has sent to the list. See reception parameter.
normalmode (default) for the listname list. This option is mainly used to cancel the
digestmodes. If the subscriber was in
nomailmode, he or she will receive email from the list in a normal manner again. See the SET LISTNAME NOMAIL command and the reception parameter. Moreover, this mode allows message topic subscription (see Message topics).
sendparameter of a list is set to
privateorpublickey, messages are only distributed in the list after an authentication phase by return mail, using a one-time password (numeric key). For this authentication, the sender of the message is requested to post the
CONFIRMkey command to Sympa.
Some administrative requests are only available to list owners. They are essential for all procedures in limited access mode, and to perform requests in place of users. These comands are:
ADDlistname user@host firstname name
SUBSCRIBE. You can avoid user notification by using the
SIGNOFF. You can avoid user notification by using the
REMINDis used by list owners in order to send an individual service reminder message to each subscriber. This message is made by parsing the
REMIND *is used by the listmaster to send to each subscriber of any list a single message with a summary of his/her subscriptions. In this case, the message sent is built by parsing the
global_remind.tt2file. For each list, Sympa tests whether the list is configured as hidden to each subscriber (parameter lparam visibility). By default, the use of this command is restricted to listmasters. Processing may take a lot of time!
These commands can be prefixed with
QUIET to indicate processing without acknowledgment of receipt.
If a list is moderated, Sympa only distributes messages enabled by one of its moderators (editors). Moderators have several methods for enabling message distribution, depending on the send parameter.
sendparameter of a list is set to
editorkeyonly, each message queued for moderation is stored in a spool (see queuemod), and linked to a key. The moderator must use this command to enable message distribution.