i explain our strange problem a little more we have a top level domain sorbonne.fr , and domain under this one like siris.sorbonne.fr or etab.sorbonne.fr alias works for domain siris and not for the others ( and not for top level sorbonne ) i delete domain siris , and the alias works for other domains , but not for all what happens is that sendmail search the sendmailMTAKey , and get the sendmailMATAliasValue , and then search this value as key , and then search this value as uid when it don t works , it doesn t search the value as key , and just search the alias as uid , which doesn t exist example key=basile.mathieu search key=basile.mathieu , attrs=value obtain bmathieu search key=bmathieu , attrs=value obtain bmathieu search uid=bmathieu works key=toto.exemple search key=toto.exemple ,attrs=value search uid=toto.exemple does not find dont works it s very strange
