IMAP Response Codes

Created
2009-03-24
Last Updated
2026-08-04
Available Formats

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Registry Included Below

IMAP Response Codes

Registration Procedure(s)
Expert Review
Expert(s)
Arnt Gulbrandsen, Dave Cridland
Reference
[RFC 5530]
Available Formats

CSV
Response Code Reference Status Description (Optional)
NEWNAME [RFC 2060] obsolete
REFERRAL [RFC 2221]
ALERT [RFC 3501][RFC 9051]
BADCHARSET [RFC 3501][RFC 9051]
PARSE [RFC 3501][RFC 9051]
PERMANENTFLAGS [RFC 3501][RFC 9051]
READ-ONLY [RFC 3501][RFC 9051]
READ-WRITE [RFC 3501][RFC 9051]
TRYCREATE [RFC 3501][RFC 9051]
UIDNEXT [RFC 3501][RFC 9051]
UIDVALIDITY [RFC 3501][RFC 9051]
UNSEEN [RFC 3501][RFC 9051]
UNKNOWN-CTE [RFC 3516][RFC 9051]
UIDNOTSTICKY [RFC 4315][RFC 9051]
APPENDUID [RFC 4315][RFC 9051]
COPYUID [RFC 4315][RFC 9051]
URLMECH [RFC 4467]
TOOBIG [RFC 4469]
BADURL [RFC 4469]
HIGHESTMODSEQ [RFC 4551]
NOMODSEQ [RFC 4551]
MODIFIED [RFC 4551]
COMPRESSIONACTIVE [RFC 4978]
CLOSED [RFC 5162][RFC 9051]
NOTSAVED [RFC 5182]
BADCOMPARATOR [RFC 5255]
ANNOTATE [RFC 5257]
ANNOTATIONS [RFC 5257]
TEMPFAIL [RFC 5259]
MAXCONVERTMESSAGES [RFC 5259]
MAXCONVERTPARTS [RFC 5259]
NOUPDATE [RFC 5267]
NOTIFICATIONOVERFLOW [RFC 5465]
BADEVENT [RFC 5465]
UNDEFINED-FILTER [RFC 5466]
METADATA [RFC 5464]
UNAVAILABLE [RFC 5530][RFC 9051]
AUTHENTICATIONFAILED [RFC 5530][RFC 9051]
AUTHORIZATIONFAILED [RFC 5530][RFC 9051]
EXPIRED [RFC 5530][RFC 9051]
PRIVACYREQUIRED [RFC 5530][RFC 9051]
CONTACTADMIN [RFC 5530][RFC 9051]
NOPERM [RFC 5530][RFC 9051]
INUSE [RFC 5530][RFC 9051]
EXPUNGEISSUED [RFC 5530][RFC 9051]
CORRUPTION [RFC 5530][RFC 9051]
SERVERBUG [RFC 5530][RFC 9051]
CLIENTBUG [RFC 5530][RFC 9051]
CANNOT [RFC 5530][RFC 9051]
LIMIT [RFC 5530][RFC 9051]
OVERQUOTA [RFC 5530][RFC 9051]
ALREADYEXISTS [RFC 5530][RFC 9051]
NONEXISTENT [RFC 5530][RFC 9051]
USEATTR [RFC 6154]
DOWNGRADED [RFC 6858]
MAILBOXID [RFC 8474]
CAPABILITY [RFC 3501][RFC 9051]
HASCHILDREN [RFC 9051]
UIDREQUIRED [RFC 9586]
INPROGRESS [RFC 9585]
TOOMANY [RFC 10022]
TOOFEW [RFC 10022]