Hi, Here is below the configuration of vpopmail on my station : __________________________________________________________________________________ vpopmail 5.0pre5 Current settings --------------------------------------- vpopmail directory = /var/spool/popmail uid = 1013 gid = 2111 ip alias = OFF --enable-ip-alias-domains=n (default) address extentions = OFF --enable-qmail-ext=n (default) roaming users = OFF --enable-roaming-users=n default user quota = 50000000 -enable-hardquota=50000000 table optimization = many domains --enable-many-domains=y default auth module = cdb default system passwords = OFF --enable-passwd=n default file locking = ON --enable-file-locking=y default file sync = ON --enable-file-sync=y default auth logging = OFF --enable-auth-logging=n default mysql logging = OFF --enable-mysql-logging=n default mysql clear passwd = OFF --enable-clear-passwd=n default valias processing = OFF --enable-valias=n pop syslog = show failure attempts with clear text password --enable-logging=p default domain = urbanet.ch --enable-default-domain=foo.ch auth inc = -Icdb auth lib = root@foo:~/packages_install/vpopmail-5.0pre5# ./configure --prefix=/var/spool/popmail --enable-qmaildir=/opt/qmail --enable-qmail-newu=/opt/qmail/bin --enable-qmail-inject=/opt/qmail/bin --enable-qmail-newmrh=/opt/qmail/bin --enable-vpopuser=vpopmail --enable-vpopgroup=vchkpw --enable-roaming-user=n --enable-tcprules-prog=/usr/local/bin/tcprules --enable-tcpserver-file=/var/spool/popmail/etc/tcp.smtp --enable-logging=p --enable-default-domain=foo.ch --enable-many-domains=y --enable-passwd=n --enable-hardquota=50000000 [EMAIL PROTECTED] ___________________________________________________________________________________ Compile it happen well . So as the make, the message of the type : vadduser.c : In function 'main' : vadduser.c :94 : warning : control reaches end of non-void function My problem is the following one : The binary work correctly for everything domains ( ~300 ), but do not work correctly on our biggest (23000 mailbox). During the use of the binary vpopmail, on the big domain, an error "Segmentation fault" for the use of vadduser, vdeluser, vpasswd, vsetuserquota but vuserinfo is ok ! During the use qmailadmin v0.78 all is ok for domains, except for biggest. One can not see mail account. Please is urgent ... my boss whant to put me outside !!! Tanks Mat