[CentOS] Mail Restrictions with sendmail

[Feizhou]

> 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 .