RFC 3974: SMTP Operational Experience in Mixed IPv4/v6 Environments

This document discusses SMTP operational experiences in IPv4/v6 dual stack environments. As IPv6-capable SMTP servers are deployed, it has become apparent…

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Outgoing relationships (5 related RFCs)

Informative reference — RFC 2822: Internet Message Format
Informative reference — RFC 2821: Simple Mail Transfer Protocol
Informative reference — RFC 3596: DNS Extensions to Support IP Version 6
Informative reference — RFC 1413: Identification Protocol
Informative reference — RFC 3178: IPv6 Multihoming Support at Site Exit Routers