Do you run multilingual website? 

If your answer is yes, this mod is must have mod for you because in stock probid version no mater what language you browsing website, ALL SYSTEM EMAILS COMES IN ONE LANGUAGE But not anymore, this mod allows your users to select preferred language when they register in your auction website (he can anytime change it in his account page) .

ALL SYSTEM EMAILS (bid notices , outbids, winning emails and all other) will be sent to him in HIS PREFERRED SELECTED LANGUAGE.