NUMBER DESCRIPTION
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-RFC 822 Format of an email message (sendmail)
RFC 1730 IMAP version 4
RFC 2060 IMAP version 4rev1
RFC 2183 Content-Disposition MIME header
RFC 2342 The IMAP4 NAMESPACE command
RFC 2616 HTTP/1.1
RFC 2683 IMAP4 Implementation Recommendations
+RFC 2822 Format of an email message (sendmail)