1 hour in total RFC5322bis (20 mins): Better definition for trace header fields + handle 1 or 2 errata items RFC5321bis (40 mins): Exploders seem to be prohibited from adding List-* header fields Need a registry of header fields that are Ok to add after submission Erratum 4315: IPv6 ABNF needs updating to align with RFC 5952 and RFC 3986 G.7.3. Resolvable FQDN in SMTP and private domain names https://trac.ietf.org/trac/emailcore/ticket/9 G.1. IP address literals in EHLO