Email Authentication Parameters

Created
2009-01-30
Last Updated
2014-08-07
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Registries included below

Email Authentication Methods

Registration Procedure(s)
Expert Review
Expert(s)
Murray Kucherawy (primary), Dave Crocker (secondary), Scott Kitterman (secondary)
Reference
[RFC7001]
Available Formats

CSV
Method Defined ptype Property Value Status Version
auth [RFC4954] smtp auth AUTH parameter of the SMTP MAIL command active 1
dkim [RFC6376] header d value of signature "d" tag active 1
dkim [RFC6376] header i value of signature "i" tag active 1
dkim [RFC6376] header b full or partial value of signature "b" tag [RFC6008] active 1
dkim-adsp [RFC5617] header from contents of the [RFC5322] From: header field, with comments removed active 1
dkim-atps [RFC6541] header from contents of the [RFC5322] From: header field, with comments removed active 1
domainkeys [RFC4870] header d value of signature "d" tag active 1
domainkeys [RFC4870] header from value of From header field after removing comments and local-part if not authenticated active 1
domainkeys [RFC4870] header sender value of Sender header field after removing comments and local-part if not authenticated active 1
iprev [RFC7001] policy iprev client IP address active 1
rrvs [RFC7293] smtp rcptto envelope recipient active 1
sender-id [RFC4406] header name of header field used by PRA value of header field used by PRA after removing comments and parts not authenticated active 1
smime [RFC5751] body smime-part A reference to the MIME body part that contains the signature, as defined in Section 4.1 of [RFC7281]. active 1
smime [RFC5751] body smime-identifer The email address [RFC5322] associated with the S/MIME signature. The email address can be specified explicitly or derived from the identity of the signer. Note that this email address can correspond to a countersignature. active 1
smime [RFC5751] body smime-serial serialNumber of the certificate associated with the S/MIME signature (see Section 4.1.2.2 of [RFC5280]). active 1
smime [RFC5751] body smime-issuer Issuer name DN (e.g., "CN=CA1,ST=BC,c=CA") of the certificate associated with the S/MIME signature (see section 4.1.2.2 of [RFC5280]). active 1
spf [RFC4408] smtp mailfrom envelope sender after removing parts not authenticated active 1
spf [RFC4408] smtp helo HELO/EHLO value active 1
vbr [RFC6212] header md DNS domain name used as the subject of a VBR query active 1
vbr [RFC6212] header mv DNS domain name of the entity acting as the voucher active 1

Email Authentication Result Names

Registration Procedure(s)
Expert Review
Expert(s)
Murray Kucherawy (primary), Dave Crocker (secondary), Scott Kitterman (secondary)
Reference
[RFC7001]
Available Formats

CSV
Code Defined Auth Method(s) Meaning Status
none [RFC7001] dkim section 2.6.1 active
none [RFC7001] domainkeys section 2.6.1 active
none [RFC7001] spf section 2.6.2 active
none [RFC7001] sender-id section 2.6.2 active
none [RFC7001] auth section 2.6.4 active
none [RFC7001] dkim-adsp [RFC5617] section 5.4 active
none [RFC7001] vbr [RFC6212] section 4 active
none [RFC7001] dkim-atps [RFC6541] section 8.3 active
none [RFC7281] smime [RFC7281] section 3.1 active
none [RFC7293] rrvs [RFC7293] section 11 active
pass [RFC7001] dkim section 2.6.1 active
pass [RFC7001] domainkeys section 2.6.1 active
pass [RFC7001] spf section 2.6.2 active
pass [RFC7001] sender-id section 2.6.2 active
pass [RFC7001] iprev section 2.6.3 active
pass [RFC7001] auth section 2.6.4 active
pass [RFC7001] dkim-adsp [RFC5617] section 5.4 active
pass [RFC7001] vbr [RFC6212] section 4 active
pass [RFC7001] dkim-atps [RFC6541] section 8.3 active
pass [RFC7281] smime [RFC7281] section 3.1 active
pass [RFC7293] rrvs [RFC7293] section 11 active
fail [RFC7001] dkim section 2.6.1 active
fail [RFC7001] domainkeys section 2.6.1 active
fail [RFC7001] iprev section 2.6.3 active
fail [RFC7001] auth section 2.6.4 active
fail [RFC7001] dkim-adsp [RFC5617] section 5.4 active
fail [RFC7001] vbr [RFC6212] section 4 active
fail [RFC7001] dkim-atps [RFC6541] section 8.3 active
fail [RFC7001] spf [RFC6577] section 3 active
fail [RFC7001] sender-id [RFC6577] section 3 active
fail [RFC7281] smime [RFC7281] section 3.1 active
fail [RFC7293] rrvs [RFC7293] section 11 active
policy [RFC7001] dkim section 2.6.1 active
policy [RFC7001] domainkeys section 2.6.1 active
policy [RFC7001] spf section 2.6.2 active
policy [RFC7001] sender-id section 2.6.2 active
policy [RFC7281] smime [RFC7281] section 3.1 active
neutral [RFC7001] dkim section 2.6.1 active
neutral [RFC7001] domainkeys section 2.6.1 active
neutral [RFC7001] spf section 2.6.2 active
neutral [RFC7001] sender-id section 2.6.2 active
neutral [RFC7281] smime [RFC7281] section 3.1 active
temperror [RFC7001] dkim section 2.6.1 active
temperror [RFC7001] domainkeys section 2.6.1 active
temperror [RFC7001] spf section 2.6.2 active
temperror [RFC7001] sender-id section 2.6.2 active
temperror [RFC7001] iprev section 2.6.3 active
temperror [RFC7001] auth section 2.6.4 active
temperror [RFC7001] dkim-adsp [RFC5617] section 5.4 active
temperror [RFC7001] vbr [RFC6212] section 4 active
temperror [RFC7001] dkim-atps [RFC6541] section 8.3 active
temperror [RFC7281] smime [RFC7281] section 3.1 active
temperror [RFC7293] rrvs [RFC7293] section 11 active
permerror [RFC7001] dkim section 2.6.1 active
permerror [RFC7001] domainkeys section 2.6.1 active
permerror [RFC7001] spf section 2.6.2 active
permerror [RFC7001] sender-id section 2.6.2 active
permerror [RFC7001] iprev section 2.6.3 active
permerror [RFC7001] auth section 2.6.4 active
permerror [RFC7001] dkim-adsp [RFC5617] section 5.4 active
permerror [RFC7001] vbr [RFC6212] section 4 active
permerror [RFC7001] dkim-atps [RFC6541] section 8.3 active
permerror [RFC7281] smime [RFC7281] section 3.1 active
permerror [RFC7293] rrvs [RFC7293] section 11 active
hardfail [RFC5451] spf [RFC5451], [RFC6577] section 4.2 deprecated
hardfail [RFC5451] sender-id [RFC5451], [RFC6577] section 4.2 deprecated
softfail [RFC7001] spf section 2.6.2 active
softfail [RFC7001] sender-id section 2.6.2 active
unknown [RFC5617] dkim-adsp section 5.4 active
unknown [RFC7293] rrvs [RFC7293] section 11 active
discard [RFC5617] dkim-adsp section 5.4 active
nxdomain [RFC5617] dkim-adsp section 5.4 active