What is catch-all email box?
Every mail sent to your domain goes into your mailbox. Your Mailbox name is the same as your login name. You can send email to any email address that ends in yourdomain.com and it will go to your mailbox! You do not have to define separate accounts for sales@yourdomain.com, support@yourdomain.com, etc. They automatically go to your mailbox. You can also setup other mailboxes if you want separate mailboxes for billing@yourdomain.com but all other email to go to your main account, for example.