postil opstil psotil spotil osptil soptil potsil optsil ptosil tposil otpsil topsil pstoil sptoil ptsoil tpsoil stpoil tspoil ostpil sotpil otspil tospil stopil tsopil positl opsitl psoitl spoitl ospitl sopitl poistl opistl piostl ipostl oipstl iopstl psiotl spiotl pisotl ipsotl sipotl ispotl osiptl soiptl oisptl iosptl sioptl isoptl potisl optisl ptoisl tpoisl otpisl topisl poitsl opitsl piotsl ipotsl oiptsl ioptsl ptiosl tpiosl pitosl iptosl tiposl itposl otipsl toipsl oitpsl iotpsl tiopsl itopsl pstiol sptiol ptsiol tpsiol stpiol tspiol psitol spitol pistol ipstol siptol isptol ptisol tpisol pitsol iptsol tipsol itpsol stipol tsipol sitpol istpol tispol itspol ostipl sotipl otsipl tosipl stoipl tsoipl ositpl soitpl oistpl iostpl siotpl isotpl otispl toispl oitspl iotspl tiospl itospl stiopl tsiopl sitopl istopl tisopl itsopl postli opstli psotli spotli osptli soptli potsli optsli ptosli tposli otpsli topsli pstoli sptoli ptsoli tpsoli stpoli tspoli ostpli sotpli otspli tospli stopli tsopli poslti opslti psolti spolti osplti soplti polsti oplsti plosti lposti olpsti lopsti psloti sploti plsoti lpsoti slpoti lspoti oslpti solpti olspti lospti slopti lsopti potlsi optlsi ptolsi tpolsi otplsi toplsi poltsi opltsi plotsi lpotsi olptsi loptsi ptlosi tplosi pltosi lptosi tlposi ltposi otlpsi tolpsi oltpsi lotpsi tlopsi ltopsi pstloi sptloi ptsloi tpsloi stploi tsploi psltoi spltoi plstoi lpstoi slptoi lsptoi ptlsoi tplsoi pltsoi lptsoi tlpsoi ltpsoi stlpoi tslpoi sltpoi lstpoi tlspoi ltspoi ostlpi sotlpi otslpi toslpi stolpi tsolpi osltpi soltpi olstpi lostpi slotpi lsotpi otlspi tolspi oltspi lotspi tlospi ltospi stlopi tslopi sltopi lstopi tlsopi ltsopi posilt opsilt psoilt spoilt ospilt sopilt poislt opislt pioslt iposlt oipslt iopslt psiolt spiolt pisolt ipsolt sipolt ispolt osiplt soiplt oisplt iosplt sioplt isoplt poslit opslit psolit spolit osplit soplit polsit oplsit plosit lposit olpsit lopsit psloit sploit plsoit lpsoit slpoit lspoit oslpit solpit olspit lospit slopit lsopit poilst opilst piolst ipolst oiplst ioplst polist oplist ploist lpoist olpist lopist pilost iplost pliost lpiost ilpost lipost oilpst iolpst olipst loipst ilopst liopst psilot spilot pislot ipslot siplot isplot psliot spliot plsiot lpsiot slpiot lspiot pilsot iplsot plisot lpisot ilpsot lipsot silpot islpot slipot lsipot ilspot lispot osilpt soilpt oislpt ioslpt siolpt isolpt oslipt solipt olsipt losipt sloipt lsoipt oilspt iolspt olispt loispt ilospt liospt silopt islopt sliopt lsiopt ilsopt lisopt potils optils ptoils tpoils otpils topils poitls opitls piotls ipotls oiptls ioptls ptiols tpiols pitols iptols tipols itpols otipls toipls oitpls iotpls tiopls itopls potlis optlis ptolis tpolis otplis toplis poltis opltis plotis lpotis olptis loptis ptlois tplois pltois lptois tlpois ltpois otlpis tolpis oltpis lotpis tlopis ltopis poilts opilts piolts ipolts oiplts ioplts polits oplits ploits lpoits olpits lopits pilots iplots pliots lpiots ilpots lipots oilpts iolpts olipts loipts ilopts liopts ptilos tpilos pitlos iptlos tiplos itplos ptlios tplios pltios lptios tlpios ltpios piltos ipltos plitos lpitos ilptos liptos tilpos itlpos tlipos ltipos iltpos litpos otilps toilps oitlps iotlps tiolps itolps otlips tolips oltips lotips tloips ltoips oiltps ioltps olitps loitps ilotps liotps tilops itlops tliops ltiops iltops litops pstilo sptilo ptsilo tpsilo stpilo tspilo psitlo spitlo pistlo ipstlo siptlo isptlo ptislo tpislo pitslo iptslo tipslo itpslo stiplo tsiplo sitplo istplo tisplo itsplo pstlio sptlio ptslio tpslio stplio tsplio psltio spltio plstio lpstio slptio lsptio ptlsio tplsio pltsio lptsio tlpsio ltpsio stlpio tslpio sltpio lstpio tlspio ltspio psilto spilto pislto ipslto siplto isplto pslito splito plsito lpsito slpito lspito pilsto iplsto plisto lpisto ilpsto lipsto silpto islpto slipto lsipto ilspto lispto ptilso tpilso pitlso iptlso tiplso itplso ptliso tpliso pltiso lptiso tlpiso ltpiso piltso ipltso plitso lpitso ilptso liptso tilpso itlpso tlipso ltipso iltpso litpso stilpo tsilpo sitlpo istlpo tislpo itslpo stlipo tslipo sltipo lstipo tlsipo ltsipo siltpo isltpo slitpo lsitpo ilstpo listpo tilspo itlspo tlispo ltispo iltspo litspo ostilp sotilp otsilp tosilp stoilp tsoilp ositlp soitlp oistlp iostlp siotlp isotlp otislp toislp oitslp iotslp tioslp itoslp stiolp tsiolp sitolp istolp tisolp itsolp ostlip sotlip otslip toslip stolip tsolip osltip soltip olstip lostip slotip lsotip otlsip tolsip oltsip lotsip tlosip ltosip stloip tsloip sltoip lstoip tlsoip ltsoip osiltp soiltp oisltp iosltp sioltp isoltp oslitp solitp olsitp lositp sloitp lsoitp oilstp iolstp olistp loistp ilostp liostp silotp islotp sliotp lsiotp ilsotp lisotp otilsp toilsp oitlsp iotlsp tiolsp itolsp otlisp tolisp oltisp lotisp tloisp ltoisp oiltsp ioltsp olitsp loitsp ilotsp liotsp tilosp itlosp tliosp ltiosp iltosp litosp stilop tsilop sitlop istlop tislop itslop stliop tsliop sltiop lstiop tlsiop ltsiop siltop isltop slitop lsitop ilstop listop tilsop itlsop tlisop ltisop iltsop litsop
Note: these 'words' (valid or invalid) are all the permutations of the word postil. These words are obtained by scrambling the letters in postil.