Thread:Project:Support desk/Email function gone from toolbox after upgrade

Upon upgrading several wiki's to MediaWiki 1.16.0 some time ago, in each case the e-mail link disappeared from the toolbox on he left. Attempting the function manually by typing into the address bar gives error messages:


 * attempts in the local language give: "There is currently no text in this page"
 * attempts in English give: "You must be logged in and have a valid e-mail address in your preferences to send e-mail to other users."

'My preferences', however, says that the e-mail address was in fact authenticated; the link was there and working flawlessly before the upgrade.

I have not found a solution. Confirming the e-mail address anew does not help.

Any ideas?