[[Special:CentralAuth/MediaWiki message delivery]] currently only lists meta.wikimedia.org. It should list many other wikis (cf. [[Special:Contributions/MediaWiki message delivery]]).
This may be a bug in CentralAuth, not in MassMessage.
Version: unspecified
Severity: normal
URL: https://en.wikipedia.org/wiki/Special:CentralAuth/MediaWiki_message_delivery