IMAP Extensions
See also http://www.melnikov.ca/mel/devel/ServerReference.html
QUOTA: IMAP4 QUOTA extension
RFC 2087
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LITERAL+: IMAP4 non-synchronizing literals
RFC 2088
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IDLE: IMAP4 IDLE command
RFC 2177
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LOGIN-REFERRALS: IMAP4 Login Referrals
RFC 2221
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NAMESPACE: IMAP4 Namespace
RFC 2342
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ID: IMAP4 ID extension
RFC 2971
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CHILDREN: IMAP4 Child Mailbox Extension
RFC 3348
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MULTIAPPEND: IMAP4 MULTIAPPEND Extension
RFC 3502
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UNSELECT: IMAP4 UNSELECT command
RFC 3691
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ACL: Access Control List (ACL) Extension
RFC 4314
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UIDPLUS: IMAP UIDPLUS extension
RFC 4315
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CONDSTORE: IMAP Extension for Conditional STORE Operation or Quick Flag Changes Resynchronization
RFC 4551
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RFC 4731
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SASL-IR: IMAP Extension for Simple Authentication and Security Layer (SASL) Initial Client Response
RFC 4959
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WITHIN: WITHIN Search Extension to the IMAP Protocol
RFC 5032
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ENABLE: The IMAP ENABLE Extension
RFC 5161
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QRESYNC: IMAP4 Extensions for Quick Mailbox Resynchronization
RFC 5162
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SEARCHRES: IMAP Extension for Referencing the Last SEARCH Result
RFC 5182
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SORT: IMAP SORT and THREAD Extensions
RFC 5256
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THREAD=ORDEREDSUBJECT: IMAP SORT and THREAD Extensions
RFC 5256
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THREAD=REFERENCES: IMAP SORT and THREAD Extensions
RFC 5256
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CONTEXT=SEARCH: Contexts for IMAP4
RFC 5267
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CONTEXT=SORT: Contexts for IMAP4
RFC 5267
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ESORT: Contexts for IMAP4
RFC 5267
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I18NLEVEL=1: Internet Message Access Protocol Internationalization
RFC 5255
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I18NLEVEL=2: Internet Message Access Protocol Internationalization
RFC 5255
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LANGUAGE: Internet Message Access Protocol Internationalization
RFC 5255
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LIST-EXTENDED: IMAP4 - LIST Command Extensions
RFC 5258
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