[rfc-dist] RFC 3974 on SMTP Operational Experience in Mixed IPv4/v6 Environments

rfc-editor at rfc-editor.org rfc-editor at rfc-editor.org
Thu Jan 20 10:37:43 PST 2005


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        RFC 3974

        Title:      SMTP Operational Experience in Mixed IPv4/v6
                    Environments
        Author(s):  M. Nakamura, J. Hagino
        Status:     Informational
        Date:       January 2005
        Mailbox:    motonori at media.kyoto-u.ac.jp, itojun at iijlab.net
        Pages:      10
        Characters: 22729
        Updates/Obsoletes/SeeAlso:    None

        I-D Tag:    draft-motonori-dualstack-smtp-requirement-01.txt

        URL:        ftp://ftp.rfc-editor.org/in-notes/rfc3974.txt


This document discusses SMTP operational experiences in IPv4/v6 dual
stack environments.  As IPv6-capable SMTP servers are deployed, it has
become apparent that certain configurations of MX records are
necessary for stable dual-stack (IPv4 and IPv6) SMTP operation.  This
document clarifies the existing problems in the transition period
between IPv4 SMTP and IPv6 SMTP.  It also defines operational
requirements for stable IPv4/v6 SMTP operation.

This document does not define any new protocol.

This memo provides information for the Internet community.  It does
not specify an Internet standard of any kind.  Distribution of this
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Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute

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