mails amils mials imals aimls iamls malis amlis mlais lmais almis lamis milas imlas mlias lmias ilmas limas ailms ialms alims laims ilams liams maisl amisl miasl imasl aimsl iamsl masil amsil msail smail asmil samil misal imsal msial smial ismal simal aisml iasml asiml saiml isaml siaml malsi amlsi mlasi lmasi almsi lamsi masli amsli msali smali asmli samli mlsai lmsai mslai smlai lsmai slmai alsmi lasmi aslmi salmi lsami slami milsa imlsa mlisa lmisa ilmsa limsa misla imsla msila smila ismla simla mlsia lmsia mslia smlia lsmia slmia ilsma lisma islma silma lsima slima ailsm ialsm alism laism ilasm liasm aislm iaslm asilm sailm isalm sialm alsim lasim aslim salim lsaim slaim ilsam lisam islam silam lsiam sliam
Note: these 'words' (valid or invalid) are all the permutations of the word mails. These words are obtained by scrambling the letters in mails.