Hello all. Sorry by the extension of this mails, but I think that log is necesary. Some times, when listserv is sending a mail, some real users appear as User Unknow. For example, in this case, when send a mail to a users-uam-l list (about 2900 subscribers), listserv dosn´t identify some users, and this users are in aliases. Always happen whith consecutive users. Aliases and the list are sorted alphabetically, an in this case, listserv "lost": [log in to unmask] [log in to unmask] [log in to unmask] [log in to unmask] [log in to unmask] [log in to unmask] .... (more users) Some idea??. It´s a listserv problem??. This users never lost particular (single) mails Best regards, (I have marked in this log lost users whith *****************>>>>>>>>!!!!!!!! Lost) LISTSERV LOG ============= May 12 13:18:32 naranjo sendmail[1185]: NAA01185: from=<[log in to unmask]>, size=1256, class=0, pri=31256, nrcpts=1, msgid=<[log in to unmask]>, proto=ESMTP, relay=limonero.sdi.uam.es [150.244.9.12] May 12 13:18:33 naranjo LSV:lsv_amin[1190]: Mail for users-uam-l (from 1055/1061 ) delivered to LISTSERV. May 12 13:18:33 naranjo sendmail[1186]: NAA01185: to="|/usr/local/sendmail/bin/l sv_amin /usr/local/sendmail/listserv/spool users-uam-l", delay=00:00:01, xdelay= 00:00:00, mailer=prog, stat=Sent May 12 13:18:34 naranjo sendmail[1191]: NAA01191: from=<>, size=40575, class=0, pri=70575, nrcpts=1, msgid=<[log in to unmask]>, proto=ESM TP, relay=naranjo.sdi.uam.es [150.244.9.11] May 12 13:18:39 naranjo sendmail[1192]: NAA01191: [log in to unmask], delay =00:00:06, xdelay=00:00:04, mailer=smtp, relay=bosque.sdi.uam.es. [150.244.9.71] , stat=Sent (OK ; Job SMTP-NETMAIL (queue SMTP_ROBLE_2, entry 384) started on SM TP_ROBLE_2) May 12 13:18:39 naranjo sendmail[1195]: NAA01195: from=<owner-users-uam-l@LISTSE RV.UAM.ES>, size=2044, class=0, pri=3002044, nrcpts=100, msgid=<3.0.1.32.2000051 [log in to unmask]>, bodytype=8BITMIME, proto=ESMTP, relay=naran jo.sdi.uam.es [150.244.9.11] May 12 13:18:44 naranjo sendmail[1198]: NAA01198: from=<owner-users-uam-l@LISTSE RV.UAM.ES>, size=2044, class=0, pri=3002044, nrcpts=100, msgid=<3.0.1.32.2000051 [log in to unmask]>, bodytype=8BITMIME, proto=ESMTP, relay=naran jo.sdi.uam.es [150.244.9.11] May 12 13:18:49 naranjo sendmail[1203]: NAA01203: from=<owner-users-uam-l@LISTSE RV.UAM.ES>, size=2044, class=0, pri=3002044, nrcpts=100, msgid=<3.0.1.32.2000051 [log in to unmask]>, bodytype=8BITMIME, proto=ESMTP, relay=naran jo.sdi.uam.es [150.244.9.11] May 12 13:18:49 naranjo sendmail[1197]: NAA01195: [log in to unmask],si [log in to unmask],[log in to unmask],[log in to unmask],adel [log in to unmask],[log in to unmask],[log in to unmask],aclimfo [log in to unmask],[log in to unmask],[log in to unmask],atd@bos que.sdi.uam.es,[log in to unmask],[log in to unmask],[log in to unmask] am.es,[log in to unmask],[log in to unmask],[log in to unmask] .es,[log in to unmask],[log in to unmask],[log in to unmask], d elay=00:00:13, xdelay=00:00:06, mailer=smtp, relay=bosque.sdi.uam.es. [150.244.9 .71], stat=Sent (OK ; Job SMTP-NETMAIL (queue SMTP_ROBLE_2, entry 385) started o n SMTP_ROBLE_2) .... MORE USERS of USERS-UAM-L list ..... May 12 13:19:27 naranjo sendmail[1241]: NAA01220: to=<[log in to unmask]>, delay=00:00 :33, xdelay=00:00:02, mailer=local, stat=Sent May 12 13:19:27 naranjo sendmail[1207]: NAA01203: [log in to unmask], delay=00:0 0:43, xdelay=00:00:01, mailer=local, stat=Sent May 12 13:19:27 naranjo sendmail[1291]: NAA01261: [log in to unmask], delay=00 :00:23, xdelay=00:00:01, mailer=local, stat=Sent May 12 13:19:28 naranjo sendmail[1367]: NAA01328: to=<[log in to unmask]> , delay=00:00:12, mailer=local, stat=User unknown *****************>>>>>>>>!!!!!!!! Lost user May 12 13:19:28 naranjo sendmail[1197]: NAA01195: [log in to unmask], delay=00:0 0:52, xdelay=00:00:01, mailer=local, stat=Sent May 12 13:19:28 naranjo sendmail[1367]: NAA01328: to=<[log in to unmask]>, de lay=00:00:12, mailer=local, stat=User unknown *****************>>>>>>>>!!!!!!!! Lost user May 12 13:19:28 naranjo sendmail[1241]: NAA01220: [log in to unmask], delay=0 0:00:34, xdelay=00:00:01, mailer=local, stat=Sent May 12 13:19:28 naranjo sendmail[1202]: NAA01198: [log in to unmask], delay= 00:00:49, xdelay=00:00:01, mailer=local, stat=Sent May 12 13:19:28 naranjo sendmail[1367]: NAA01328: to=<[log in to unmask]>, de lay=00:00:12, mailer=local, stat=User unknown *****************>>>>>>>>!!!!!!!! Lost user May 12 13:19:28 naranjo sendmail[1367]: NAA01328: to=<[log in to unmask]>, del ay=00:00:12, mailer=local, stat=User unknown *****************>>>>>>>>!!!!!!!! Lost user May 12 13:19:28 naranjo sendmail[1207]: NAA01203: [log in to unmask], delay= 00:00:44, xdelay=00:00:01, mailer=local, stat=Sent May 12 13:19:28 naranjo sendmail[1367]: NAA01328: to=<enrique.garcia.camarero@UA M.ES>, delay=00:00:12, mailer=local, stat=User unknown *****************>>>>>>>>!!!!!!!! Lost user May 12 13:19:28 naranjo sendmail[1367]: NAA01328: to=<enrique.garcia.gabiola@UAM .ES>, delay=00:00:12, mailer=local, stat=User unknown May 12 13:19:28 naranjo sendmail[1367]: NAA01328: to=<[log in to unmask]>, del ay=00:00:12, mailer=local, stat=User unknown May 12 13:19:28 naranjo sendmail[1370]: NAA01370: from=<owner-users-uam-l@LISTSE RV.UAM.ES>, size=2044, class=0, pri=3002044, nrcpts=100, msgid=<3.0.1.32.2000051 [log in to unmask]>, bodytype=8BITMIME, proto=ESMTP, relay=naran jo.sdi.uam.es [150.244.9.11] May 12 13:19:28 naranjo sendmail[1367]: NAA01328: to=<[log in to unmask]>, delay=00:00:12, mailer=local, stat=User unknown *****************>>>>>>>>!!!!!!!! Lost user May 12 13:19:29 naranjo sendmail[1291]: NAA01261: [log in to unmask], delay=0 0:00:25, xdelay=00:00:02, mailer=local, stat=Sent May 12 13:19:29 naranjo sendmail[1197]: NAA01195: [log in to unmask], dela y=00:00:53, xdelay=00:00:01, mailer=local, stat=Sent -- ------------------------------------------------------------------------------------------- Mercedes Giménez Barrio e-mail: [log in to unmask] Servicio de Informática Phone: +34 91 397 51 53 Universidad Autónoma de Madrid Fax : +34 91 397 39 14 E-28049 Cantoblanco. España (SPAIN) ------------------------------------------------------------------------------------------- -- ------------------------------------------------------------------------------------------- Mercedes Giménez Barrio e-mail: [log in to unmask] Servicio de Informática Phone: +34 91 397 51 53 Universidad Autónoma de Madrid Fax : +34 91 397 39 14 E-28049 Cantoblanco. España (SPAIN) -------------------------------------------------------------------------------------------