"Universal Schema Reference":

Messaging Server Object Classes
Releases 1.x, 3.x, and 4.0


mailGroup
Supported by Netscape Messaging Server 3.x, 4.0 Netscape Directory Server 1.0, 3.x, 4.0
Definition Object class used as an enhancement to groupOfUniqueNames to define a group of mail recipients. mailGroup is used to store Messaging Server mailing lists. This object class is a Netscape extension to the LDAP schema.
Superior Class top
OID 2.16.840.1.113730.3.2.4


Required Attributes	Description
objectClass	Reserved.
mail	The group's electronic mailing address.


Allowed AttributeS	Description
cn (commonName)	The group's common name.
mailAlternateAddress	Alternate mail address for the group.
mailHost	Host on which the group's mail account resides.
mgrpAddHeader
mgrpAllowedBroadcaster	URL identifying a mail user that is allowed to send mail to the mail group.
mgrpAllowedDomain	Domain from which users can send mail to the mail group.
mgrpApprovePassword	When set, any message to the list requires "approved:(passwrd)" in heading or on first line.
mgrpBroadcasterPolicy	Policy for determining allowedBroadcaster.
mgrpDeliverException	DNs excluded from delivery to dynamic mail groups.
mgrpDeliverTo	Alternative method of identifying members of the mail group using LDAP search criteria.
mgrpErrorsTo	Mailing address to which mail delivery error messages are sent.
mgrpModerator	Mailing address to which rejected mail messages are sent.
mgrpMsgMaxSize	Maximum message size that can be sent to the mail group.
mgrpMsgRejectAction	Specifies the action to the taken in the event that mail sent to the mail group is rejected.
mgrpMsgRejectText	Text to be sent in the event that mail sent to the mail group is rejected.
mgrpNoDuplicateChecks	Prevents Messaging Server from checking for duplicate delivery of a message to members of the mailgroup.
mgrpRemoveHeader
mgrpRFC822MailMember	Members of the mail group that aren't in this directory (specified by mail address rather than DN).
owner	Distinguished name of the mail group's owner.