it.wiki has a specific namespace for WikiProjects (bug 7101) and some coordination pages in "Wikipedia" namespace whose discussion happens on talk; but currently MassMessage can only post to NS_PROJECT, NS_USER_TALK, resulting in errors.
It's requested to add all talk namespaces, or at least "Discussioni progetto" and "Wikipedia talk", to wmgNamespacesToPostIn. Consensus in URL.

Version: unspecified
Severity: enhancement
URL: https://it.wikipedia.org/wiki/Wikipedia:Bar/Discussioni/Messaggi_massivi_non_recapitati