b934d9c4__Unofficial_IMAP_Protocol_Wiki__WinGate_7
[RFC] 5032 [Name] WITHIN Search Extension to the IMAP Protocol [Capability name] WITHIN [Agorum Core] yes [Apache James] yes [Archive​opteryx] yes [Axigen] no [Citadel] no [Communigate Pro] no [Courier] no [Cyrus] v2.4 [DBMail] no [Dovecot] v1.2 [GMail] no [IceWarp] no [Isode] yes [Kerio Connect] no [MDaemon] no [Microsoft Exchange] no [Oracle] v7.0 [UW-IMAP] yes [Zimbra] yes [WinGate 7] 
yes
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Specs - Unofficial IMAP Protocol Wiki
WinGate 7