The INBOX
* OK [UIDVALIDITY 843562778] UID validity status
* FLAGS (\Answered \Flagged \Deleted \Seen)
* OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen)] Permanent flags
a2 OK [READ-WRITE] SELECT completed
Each session has a unique identifier
The server tells the client what flags are supported and what flags the user can change
All servers support the default INBOX mailbox name
The server indicates user privileges