…| TXT | _domainkey | [RFC6376] | | TXT | _mta-sts | [RFC8461] | | TXT | _spf | [RFC7208] | | TXT | _sztp | [ZEROTOUCH] | | TXT | _tcp | [RFC6763] | | TXT | _udp | [RFC6763] | | TXT | _vouch | [RFC5518] | | URI | _acct | [RFC6118] | | URI | _dccp | [RFC7566] | | URI | _email | [RF…
… | _domainkey | [ RFC6376 ] | | TXT | _mta-sts | [ RFC8461 ] | | TXT | _spf | [ RFC7208 ] | | TXT | _sztp | [ ZEROTOUCH ] | | TXT | _tcp | [ RFC6763 ] | | TXT | _udp | [ RFC6763 ] | | TXT | _vouch | [ RFC5518 ] | | URI | _acct | [ RFC6118 ] | | URI | _dccp | [ RFC7566 ] | | URI |…
…is-12, 3.6.7 ][ RFC-ietf-emailcore-rfc5321bis-43 ] Received-SPF mail standard [ RFC7208 ] References mail standard no [ RFC-ietf-emailcore-rfc5322bis-12, 3.6.4 ] References netnews standard [ RFC5536 ][ RFC-ietf-emailcore-rfc5322bis-12 ] Relay-Version netnews obsoleted [ RFC850 ]…
…322bis-12, 3.6.7 ][ RFC-ietf-emailcore-rfc5321bis-43 Received-SPF mail standard RFC7208 References mail standard no RFC-ietf-emailcore-rfc5322bis-12, 3.6.4 References netnews standard RFC5536 ][ RFC-ietf-emailcore-rfc5322bis-12 Relay-Version netnews obsoleted RFC850 ][ RFC5536 Re…
…322bis-12, 3.6.7 ][ RFC-ietf-emailcore-rfc5321bis-43 Received-SPF mail standard RFC7208 References mail standard no RFC-ietf-emailcore-rfc5322bis-12, 3.6.4 References netnews standard RFC5536 ][ RFC-ietf-emailcore-rfc5322bis-12 Relay-Version netnews obsoleted RFC850 ][ RFC5536 Re…
…322bis-12, 3.6.7 ][ RFC-ietf-emailcore-rfc5321bis-43 Received-SPF mail standard RFC7208 References mail standard no RFC-ietf-emailcore-rfc5322bis-12, 3.6.4 References netnews standard RFC5536 ][ RFC-ietf-emailcore-rfc5322bis-12 Relay-Version netnews obsoleted RFC850 ][ RFC5536 Re…