EXPIRED DOMAIN AND DOMAIN REDEMPTION.
Once a domain expires it goes through many stages before being deleted.
When the domain expires, your website and mail service will stop functioning, and no changes can be made to the domain.
However, for GTLD (.com, .net, .org, .biz, .info, etc.), you will have 15-30 expiration grace period after the actual expiration date during which you can renew.If you do not renew the domain within this grace period, it enters a “redemption period” at the Registry and placed into the auction. Usually, domains are auctioned off successfully.