On Wed, Jun 17, 2015 at 04:37:36PM -0400, Brendan Kearney wrote:
i have done some reading, and it seems that no official standard exists for group email addresses. to that end, i am looking to enlighten myself about what is done to provide mail addresses for groupOfNames groups.
Are you just trying to add a 'mail' attribute to the group entry, or do you want the MTA (mail system) to use LDAP data to expand the mailing list?
Adding the mail attribute is quite simple: define an AUXILIARY object class that permits the attribute, add that to the group entries, and you can then add the mail attribute.
Doing group-based mail expansion takes more work, and really depends on what MTA you are using. You would need to configure the MTA to recognise the groups as valid list-expansion targets. It would then read the group and fetch the mail attribute from each member entry to construct the list. If the MTA cannot do this two-stage process itself, you could consider using the dynlist overlay in slapd to collect the members' mail addresses into the group entry itself.
Andrew