maill amill miall imall aimll iamll malil amlil mlail lmail almil lamil milal imlal mlial lmial ilmal limal ailml ialml aliml laiml ilaml liaml maill amill miall imall aimll iamll malil amlil mlail lmail almil lamil milal imlal mlial lmial ilmal limal ailml ialml aliml laiml ilaml liaml malli amlli mlali lmali almli lamli malli amlli mlali lmali almli lamli mllai lmlai mllai lmlai llmai llmai allmi lalmi allmi lalmi llami llami milla imlla mlila lmila ilmla limla milla imlla mlila lmila ilmla limla mllia lmlia mllia lmlia llmia llmia illma lilma illma lilma llima llima aillm iallm alilm lailm ilalm lialm aillm iallm alilm lailm ilalm lialm allim lalim allim lalim llaim llaim illam lilam illam lilam lliam lliam
Note: these 'words' (valid or invalid) are all the permutations of the word maill. These words are obtained by scrambling the letters in maill.