What is BATV?
BATV is a scheme that uses PRVS or Simple Private Signature which is injected into the mail address to verify the identity of the sender. Our mailing list software does not support this variance in e-mail addresses and rejects messages using BATV headers.
BATV is an Internet Draft, which each revision has 185 days to live. The last BATV draft expired in July (2007).
From the draft stage, the Internet Engineering Steering Group creates a 'Proposed Standard' at which time the Internet Draft becomes an RFC. From there it moves to 'Draft Standard' stage and then finally to 'Internet Standard', the status of which is always publish in the leading sections of the RFC. In short, it is years away from becoming a standard.
References:
BATV Internet Draft http://mipassoc.org/batv/draft-levine-batv-03.html
IETF Standards Process ftp://ftp.rfc-editor.org/in-notes/bcp/bcp9.txt
RFC 822 http://www.ietf.org/rfc/rfc0822.txt
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For an example of how BATV may affect mailing lists, please see the related article.