Internet Engineering Task Force (IETF) A. Melnikov Request for Comments: 6196 Isode Limited Updates: 1738 March 2011 Category: Standards Track ISSN: 2070-1721
Moving mailserver: URI Scheme to Historic
Abstract
This document registers the mailserver: URI scheme as historic in the IANA URI registry.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6196.
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Melnikov Standards Track [Page 1]
RFC 6196 Moving mailserver: URI Scheme to Historic March 2011
RFC 1738 [RFC1738] registers the mailserver: URI scheme as provisional in the IANA URI registry defined by [RFC4395], defining it as "Access to data available from mail servers" with no further details provided. The author of this document is not aware of any other more detailed definition of the mailserver: URI scheme. The mailserver: URI scheme as currently specified is not interoperable. There is a small risk that somebody would decide to implement this scheme by looking at IANA's URI scheme registry, possibly inventing some undocumented syntax for it. In order to minimize such risk, this document discourages any future implementations of this URI scheme and asks IANA to mark it as Historic in the URI scheme registry.
There were some previous attempts to provide detailed documentation of the mailserver: URI scheme, but those efforts were not successful. Implementors interested in providing instructions for generating an email [RFC5322] message can instead use the mailto: URI scheme [RFC6068]. Implementors interested in referencing a message or a set of messages available from a mailstore over IMAP [RFC3501], POP [RFC1939], or web [RFC2616] can instead use the imap: [RFC5092], pop: [RFC2384] or http: [RFC2616] URIs, respectively.
In the past, the mailserver: URI scheme was never properly documented and thus doesn't interoperate. There are no known implementations of this URI scheme.
[RFC1738] Berners-Lee, T., Masinter, L., and M. McCahill, "Uniform Resource Locators (URL)", RFC 1738, December 1994.
[RFC1939] Myers, J. and M. Rose, "Post Office Protocol - Version 3", STD 53, RFC 1939, May 1996.
[RFC2384] Gellens, R., "POP URL Scheme", RFC 2384, August 1998.
[RFC2616] Fielding, R., Gettys, J., Mogul, J., Frystyk, H., Masinter, L., Leach, P., and T. Berners-Lee, "Hypertext Transfer Protocol -- HTTP/1.1", RFC 2616, June 1999.
[RFC3501] Crispin, M., "INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1", RFC 3501, March 2003.
[RFC5092] Melnikov, A. and C. Newman, "IMAP URL Scheme", RFC 5092, November 2007.