|Email settings: $wgEnableUserEmail|
|Set to true to enable user-to-user email.
|Introduced in version:||1.4.0|
|Removed in version:||still in use|
|Other settings: Alphabetical | By function|
Set to true to enable user-to-user email via Special:Emailuser. This can potentially be abused, as it's hard to track. This setting can be used to check if SMTP is set up correctly on your wiki.
$wgEnableEmail to be true as well.