b934d9c4__Unofficial_IMAP_Protocol_Wiki__WinGate_7
[RFC] 2221 [Name] IMAP4 Login Referrals [Capability name] LOGIN-REFERRALS [Agorum Core] no [Apache James] no [Archive​opteryx] no [Axigen] no [Citadel] no [Communigate Pro] yes [Courier] no [Cyrus] no [DBMail] no [Dovecot] v1.0 [GMail] no [IceWarp] no [Isode] no [Kerio Connect] no [MDaemon] no [Microsoft Exchange] no [Oracle] v7.0 [UW-IMAP] yes [Zimbra] yes [WinGate 7] 
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Specs - Unofficial IMAP Protocol Wiki
WinGate 7