The original plugin was written by Condiminds but doesn’t seem to have been updated for Elgg 1.8, at least not that I could find.
From the plugin notes:
This plugin allows elgg to send notifications into html emails.
This plugins supports 3 views:
- Invite friends
- Importer (requires the importer plugin to be installed: http://community.elgg.org/
pg/plugins/ project/519414/ developer/ tulicipriota/ contacts-importer-for-v17 )
I needed an updated version for a client project, so I hacked together a quick port. Have fun!