quota Values

Valid numeric values for quota are

pos_num[G|M|K] or -1 or -2.

where pos_num is a positive number up to a maximum of 4294966272

and G (gigabytes), M (megabytes), and K (kilobytes) are the valid units of measurement.

You can specify the full quota value as a positive number by itself (for example, 20000000) or use a unit of measurement (for example, 20M).

The maximum quota value of the user mailbox is 4096G.

Specifying a quota value of 0 will mean that no mail will be delivered.

You can also use the values shown in the following table.