To set a quota on a mailbox, just type the quota amount. To remove a quota, enter a zero value.

To set the ACL (Access Control Lists) on a mailbox/folder:

- Choose a REAL user; or type anyone for all users;
- Set the ACLs:

- l : lookup : The user may see that the mailbox exists
- r : read : The user may read the mailbox. The user may select the mailbox, fetch data, perform searches, and copy messages from the mailbox.
- s : seen : Keep per-user seen state. The "Seen" and "Recent" flags are preserved for the user.
- w : write : The user may modify flags and keywords other than "Seen" and "Deleted" (which are controlled by other sets of rights).
- i : insert : The user may insert new messages into the mailbox.
- p : post : The user may send mail into a subfolder in the mailbox. E.g. if anyone sends a mail to "user+folder@domain.com", this mail becomes in the subfolder "folder" (attention, large and lower case are considered!) in the INBOX of "user". This right differs from "i" by the fact that in the header of message also "user+folder@domain.com" stands.
- c : create : The user may create new sub-mailboxes of the mailbox, or delete or rename the current mailbox.
- d : delete : The user may store the "Deleted" flag, and perform expunges.
- a : administer : The user may change the ACL on the mailbox.

- click on remove to delete the ACLs for an user