hi i use fds on solaris 9 as users database i can send , receive email , alias works but i have a few mail that seems to be sent but i never receive and here are logs i can see just after sendmail receive the mail : Mar 8 16:32:39 mailer sm-mta[874]: [ID 801593 mail.info] k28FWdpb000874: from=<toto at siris.sorbonne.fr>, size=375, class=0, nrcpts=1, msgid=<440EF916.30503 at siris.sorbonne.fr>, proto=ESMTP, daemon=Daemon0, relay=pc.sorbonne.fr [xxx.xxx.xxx.xxx] Mar 8 16:32:39 mailer sm-mta[878]: [ID 293258 mail.error] libsldap: Status: 91 Mesg: Error 0 Mar 8 16:32:39 mailer last message repeated 1 time Mar 8 16:32:39 mailer sm-mta[878]: [ID 293258 mail.error] libsldap: Status: 7 Mesg: Session error no available conn. thanks basile