'Mail sent', 'subtitle' => 'Every mail this installation has sent — when, to whom, with what subject. A row means the mail server accepted it.', 'search' => 'Search', 'search_hint' => 'Address or subject', 'empty' => 'Nothing has been sent yet.', 'col_when' => 'When', 'col_to' => 'To', 'col_subject' => 'Subject', 'col_kind' => 'Kind', 'by_hand' => 'By hand', ];