MIME-Version |
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MIME is HTTP's cousin. While they are radically different, some HTTP servers do construct messages that are valid under the MIME specification. When this is the case, the MIME-Version header can be supplied by the server.
This header has never been part of the official specification, although it is mentioned in the HTTP/1.0 specification. Many older servers send messages with this header, however, those messages often are not valid MIME messages, making this header both confusing and impossible to trust.
Extension general header
MIME-Version: DIGIT "." DIGIT
MIME-Version: 1.0