IMAP Extensions

QUOTA: IMAP4 QUOTA extension

 * RFC 2087
 * Known supporting servers:
 * Dovecot v1.0+ (read-only)
 * IceWarp Mail Server v9.4+ (read-only)
 * Known unsupporting servers:

LITERAL+: IMAP4 non-synchronizing literals

 * RFC 2088
 * Known supporting servers:
 * Dovecot v1.0+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

IDLE: IMAP4 IDLE command

 * RFC 2177
 * Known supporting servers:
 * Dovecot v1.0+
 * IceWarp Mail Server v9.4+
 * Known unsupporting servers:

LOGIN-REFERRALS: IMAP4 Login Referrals

 * RFC 2221
 * Known supporting servers:
 * Dovecot v1.0+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

NAMESPACE: IMAP4 Namespace

 * RFC 2342
 * Known supporting servers:
 * Dovecot v1.0+
 * IceWarp Mail Server v9.4+
 * Known unsupporting servers:

ID: IMAP4 ID extension

 * RFC 2971
 * Known supporting servers:
 * Dovecot v1.2+
 * IceWarp Mail Server v9.4+
 * Known unsupporting servers:

CHILDREN: IMAP4 Child Mailbox Extension

 * RFC 3348
 * Known supporting servers:
 * Dovecot v1.0+
 * IceWarp Mail Server v9.4+
 * Known unsupporting servers:

MULTIAPPEND: IMAP4 MULTIAPPEND Extension

 * RFC 3502
 * Known supporting servers:
 * Dovecot v1.0+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

UNSELECT: IMAP4 UNSELECT command

 * RFC 3691
 * Known supporting servers:
 * Dovecot v1.0+
 * IceWarp Mail Server v9.4+
 * Known unsupporting servers:

ACL: Access Control List (ACL) Extension

 * RFC 4314
 * Known supporting servers:
 * Dovecot v1.2+
 * IceWarp Mail Server v10.0+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4

UIDPLUS: IMAP UIDPLUS extension

 * RFC 4315
 * Known supporting servers:
 * Dovecot v1.1+
 * IceWarp Mail Server v9.4+
 * Known unsupporting servers:

CONDSTORE: IMAP Extension for Conditional STORE Operation or Quick Flag Changes Resynchronization

 * RFC 4551
 * Known supporting servers:
 * Dovecot v1.2+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

ESEARCH: IMAP4 Extension to SEARCH Command for Controlling What Kind of Information Is Returned

 * RFC 4731
 * Known supporting servers:
 * Dovecot v1.2+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

SASL-IR: IMAP Extension for Simple Authentication and Security Layer (SASL) Initial Client Response

 * RFC 4959
 * Known supporting servers:
 * Dovecot v1.0+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

WITHIN: WITHIN Search Extension to the IMAP Protocol

 * RFC 5032
 * Known supporting servers:
 * Dovecot v1.2+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

ENABLE: The IMAP ENABLE Extension

 * RFC 5161
 * Known supporting servers:
 * Dovecot v1.2+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

QRESYNC: IMAP4 Extensions for Quick Mailbox Resynchronization

 * RFC 5162
 * Known supporting servers:
 * Dovecot v1.2+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

SEARCHRES: IMAP Extension for Referencing the Last SEARCH Result

 * RFC 5182
 * Known supporting servers:
 * Dovecot v1.2+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

SORT: IMAP SORT and THREAD Extensions

 * RFC 5256
 * Known supporting servers:
 * Dovecot v1.0+
 * IceWarp Mail Server v9.4+ (except that it returns "y8 NO THREAD Arguments invalid" in response to "y8 UID THREAD ORDEREDSUBJECT utf-8 ALL"...)
 * Known unsupporting servers:

THREAD=ORDEREDSUBJECT: IMAP SORT and THREAD Extensions

 * RFC 5256
 * Known supporting servers:
 * IceWarp Mail Server v9.4+ (see above)
 * Known unsupporting servers:
 * Dovecot (v1.2)

THREAD=REFERENCES: IMAP SORT and THREAD Extensions

 * RFC 5256
 * Known supporting servers:
 * Dovecot v1.0+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

CONTEXT=SEARCH: Contexts for IMAP4

 * RFC 5267
 * Known supporting servers:
 * Dovecot v1.2+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

CONTEXT=SORT: Contexts for IMAP4

 * RFC 5267
 * Known supporting servers:
 * Known unsupporting servers:
 * Dovecot (v1.2)
 * IceWarp Mail Server v9.4/v10.0

ESORT: Contexts for IMAP4

 * RFC 5267
 * Known supporting servers:
 * Dovecot v1.2+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

I18NLEVEL=1: Internet Message Access Protocol Internationalization

 * RFC 5255
 * Known supporting servers:
 * Dovecot v1.1+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0

I18NLEVEL=2: Internet Message Access Protocol Internationalization

 * RFC 5255
 * Known supporting servers:
 * Known unsupporting servers:
 * Dovecot (v1.2)
 * IceWarp Mail Server v9.4/v10.0

LANGUAGE: Internet Message Access Protocol Internationalization

 * RFC 5255
 * Known supporting servers:
 * Known unsupporting servers:
 * Dovecot (v1.2)
 * IceWarp Mail Server v9.4/v10.0

LIST-EXTENDED: IMAP4 - LIST Command Extensions

 * RFC 5258
 * Known supporting servers:
 * Dovecot v1.1+
 * Known unsupporting servers:
 * IceWarp Mail Server v9.4/v10.0