b934d9c4__Unofficial_IMAP_Protocol_Wiki__WinGate_7
[RFC] 4978 [Name] The IMAP COMPRESS Extension [Capability name] COMPRESS=DEFLATE (L) [Agorum Core] no [Apache James] no [Archive​opteryx] yes [Axigen] no [Citadel] no [Communigate Pro] no [Courier] no [Cyrus] v2.4 [DBMail] no [Dovecot] v2.0 [GMail] yes [IceWarp] no [Isode] no [Kerio Connect] no [MDaemon] yes [Microsoft Exchange] no [Oracle] no [UW-IMAP] no [Zimbra] yes [WinGate 7] 
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Specs - Unofficial IMAP Protocol Wiki
WinGate 7