C: 11 UID FETCH 25900:26600 (UID FLAGS)
  S: * 25900 UIDFETCH (FLAGS (\Seen) UID 25900)
  S: * 25902 UIDFETCH (FLAGS (\Flagged) UID 25902)
  S: * 26310 UIDFETCH (FLAGS (\Answered) UID 26310)
  S: * 26311 UIDFETCH (FLAGS () UID 26311)
  S: * 26498 UIDFETCH (FLAGS (\Answered) UID 26498)
  [...]
  S: 11 OK FETCH completed