Quota: change the quota for this specific mailbox. Mailbox quota is not related to the site disk space quota. To change your mail quota, enter its new size in megabytes. From that moment on you will be charged for the difference between this new amount and the default free amount. This charge will be added to the recurrent fee at the beginning of each billing period.
Catch All: if it's on, any email messages sent to a nonexistent account on your domain will go to this address.
Example: your mailbox firstname.lastname@example.org is marked as catch all. If someone sends an email to email@example.com, which doesn't exist, this particular message will arrive at firstname.lastname@example.org. If no account were marked as catch all, this message would bounce back to the sender with an error notification.
Password: click the icon to change the mailbox password.
Autoresponder: set your mailbox to respond to the sender of incoming mail with a preset message. You need to compose a separate response message for every mailbox. Note: in version 2.3 and higher, autoresponder is an independent mail resource.
go to the web e-mail client to send or receive e-mail messages.
Discard all incoming mail: turn this ON only if you are absolutely sure you don't need ALL your incoming mail. You can also turn it on when you are going on vacation. Senders won't receive 'undelivered mail' notices.
Delete: delete the mailbox. To delete a Catch All mailbox, first switch Catch All OFF.
Trouble Ticket: report troubles with the mailbox.