Ldap_add_header MTA option
Direct LDAP attribute name MTA options:
ldap_add_header (LDAP attribute name)
ldap_add_header MTA option specifies the name of the group LDAP attribute, by default
mgrpAddHeader, which contains header lines to add to messagtes posted to the list. Such header lines might include, for instance, the List-*: header lines suggested in RFC 2369 (URLs for Mail List Commands through Message Headers).
See also the
ldap_remove_header MTA option, for removing header lines from postings to the group or list.
For groups or lists defined via alias file or alias database (legacy configuration) or alias options (Unified Configuration), see instead the [HEADER_ADDITION] alias file named parameter or
alias_header_addition alias option, respectively.
mgrpAddHeader (or whatever LDAP attribute is named by
ldap_add_header) is a very simple approach when unconditional additional of certain header lines is desired. For more complex requirements, consider setting a Sieve filter on the group or list (see the
ldap_filter MTA option) that makes use of the Sieve editheader extension.