Extension:NewDuplicateUserMessage

The NewDuplicateUserMessage extension adds a message to the talk pages of newly created duplicate user accounts, which are determined by email address.

This extension was forked from the NewUserMessage extension. See the documentation for the original extension NewUserMessage.

Configuration
Create the "Template:DuplicateUserWelcome" page on the wiki:

The configuration is the same as the original extension NewUserMessage except instead of "NewUser", use "NewDuplicateUser".

For example:
 * Instead of, use.
 * Instead of "MediaWiki:Newusermessage-template", use "MediaWiki:Newduplicateusermessage-template".