> I will have to edit /etc/fstab . I will have to add usrquota,grpquota > Good research. > > > Now, my question is to which partition should I have to add > usrquota,grpquota. > > > Is it to /var partion should I have to add quota as All incoming mail > will be stored as /var/spool/mail/username According to your list of filesystems below, yes, /var definitely needs quota turned on. > > or > > Is it to /home partion should I have to add quota as All users are > system users ( i.e- /etc/passwd, /etc/shadow and /etc/group Only if you intend to lump both mailbox quota and home directory quota together. If you need to enable separate quotas for these...you need another solution. If you do not need quotas for anything but mail, just turn on quotas for /var. > > to create account I use traditional useradd command as follows. > useradd username > > my partion table of the hard disk is as follows. /var and /home partion > are marked in BOLD letters. > pls see below > > [root at mailgw ~]# df -h > Filesystem Size Used Avail Use% Mounted on > /dev/sda2 39G 1.6G 35G 5% / > /dev/sda1 2.9G 53M 2.7G 2% /boot > none 251M 0 251M 0% /dev/shm > /dev/sda5 39G 201M 37G 1% /home > /dev/sda7 6.8G 2.4G 4.1G 38% /opt > /dev/sda6 6.8G 48M 6.4G 1% /tmp > /dev/sda8 52G 1.4G 48G 3% /var > > YOUR comments are welcome .