context: https://welcome.openstreetmap.org/working-with-osm-data/humanitarian-campaign/

now "to contact the local OSM community via the email list for that country" ( links to https://lists.openstreetmap.org/listinfo )

But some country still has a google-groups based mail list:

• OSM-HU ( Hungary) - https://groups.google.com/forum/#!forum/openstreetmap-hungary
• OSM-SK ( Slovakia ) - http://groups.google.sk/group/osm_sk/

imho linking to the wiki page is better:

• https://wiki.openstreetmap.org/wiki/Mailing_lists#Country-Specific_Lists

( + https://github.com/osmlab/osm-community-index will be usefull see: #26)