2.10.3.1 Keeping Quotas in DBM Database

To use the dbm quota database, your copy of mailutils must be compiled with dbm support (one of --with-gdbm, --with-db2, --with-ndbm, --with-dbm options to configure). Examine the of mail.local --show-config-options if not sure.

The quota database should have the following structure:

Key

Key represents the user name. Special key ‘DEFAULT’ means default quota value, i.e. the one to be used if the user is not explicitely listed in the database.

Value

The mailbox quota for this user. If it is a number, it represents the maximum mailbox size in bytes. A number may optionally be followed by ‘kb’ or ‘mb’, meaning kilobytes and megabytes, respectively.

A special value ‘NONE’ means no mailbox size limitation for this user.

Here is an example of a valid quota database

     # Default quota value:
     DEFAULT         5mb
     
     # Following users have unlimited mailbox size
     root            NONE
     smith           NONE
     
     # Rest of users
     plog            26214400
     karin           10mB

To use the dbm database, specify its full name using -q or ‘--quota-db’ in the invocation of mail.local. For example, in sendmail .mc file:

     define(`LOCAL_MAILER_PATH', `/usr/local/libexec/mail.local')
     define(`LOCAL_MAILER_ARGS', `mail -q /etc/mail/quota.db $u')