Hiram Clawson wrote: MediaWiki doesn't provide such option. Since emails are considered private information, information such as "someone with this email is registered here" is not disclosed.* Given that the account list is public, they could browse the user list (Special:ListUsers) looking for their name, or the account creation log (Special:Log, account creation log). The latter allows them to search based on the approximate date on which they created the account, while the first one is better if they know an approximation of the account name (eg. how it begins). All of these requires the user to be able to identify the username they chose, when shown in a list. Finally, they can also look in their own inbox for the welcome email the wiki would have sent them, in which the username is also listed. * Your email address may be shown to the recipient after you send an email to another user inside the wiki.

Benjamin is correct, this reminder system wouldn't have to indicate anything about the legitimacy of the email address. Just say, watch for your new password in your email. --Hiram Benjamin Lees wrote: