Internet Assigned Numbers Authority

                                                     DomainKeys Identified Mail (DKIM) Parameters

   Created
           2007-03-08

   Last Updated
           2018-07-06

   Available Formats
           [IMG]
           XML [IMG]
           HTML [IMG]
           Plain text

   Registries included below

     * DKIM Signature Tag Specifications
     * DKIM-Signature Query Method
     * DKIM-Signature Canonicalization Header
     * DKIM-Signature Canonicalization Body
     * _domainkey DNS TXT Record Tag Specifications
     * DKIM Key Type
     * DKIM Hash Algorithms
     * DKIM Service Types
     * DKIM Selector Flags
     * Authorized Third-Party Signature (ATPS) Tag Registry
     * DKIM Reporting Tag Registry

DKIM Signature Tag Specifications

   Registration Procedure(s)

 IETF Review

   Reference
           [RFC6376]

   Available Formats
           [IMG]
           CSV

   Type  Reference Status
     v   [RFC6376] active
     a   [RFC6376] active
     b   [RFC6376] active
    bh   [RFC6376] active
     c   [RFC6376] active
     d   [RFC6376] active
     h   [RFC6376] active
     i   [RFC6376] active
     l   [RFC6376] active
     q   [RFC6376] active
     s   [RFC6376] active
     t   [RFC6376] active
     x   [RFC6376] active
     z   [RFC6376] active
   atps  [RFC6541] active
   atpsh [RFC6541] active
     r   [RFC6651] active

DKIM-Signature Query Method

   Registration Procedure(s)

 IETF Review

   Reference
           [RFC6376]

   Available Formats
           [IMG]
           CSV

   Type Option Reference Status
   dns  txt    [RFC6376] active

DKIM-Signature Canonicalization Header

   Registration Procedure(s)

 IETF Review

   Reference
           [RFC6376]

   Available Formats
           [IMG]
           CSV

    Type   Reference Status
   simple  [RFC6376] active
   relaxed [RFC6376] active

DKIM-Signature Canonicalization Body

   Registration Procedure(s)

 IETF Review

   Reference
           [RFC6376]

   Available Formats
           [IMG]
           CSV

    Type   Reference Status
   simple  [RFC6376] active
   relaxed [RFC6376] active

_domainkey DNS TXT Record Tag Specifications

   Registration Procedure(s)

 IETF Review

   Reference
           [RFC6376]

   Available Formats
           [IMG]
           CSV

   Type Reference  Status
    v   [RFC6376] active
    g   [RFC4871] historic
    h   [RFC6376] active
    k   [RFC6376] active
    n   [RFC6376] active
    p   [RFC6376] active
    s   [RFC6376] active
    t   [RFC6376] active

DKIM Key Type

   Registration Procedure(s)

 IETF Review

   Reference
           [RFC6376]

   Available Formats
           [IMG]
           CSV

    Type   Reference Status
     rsa   [RFC8017] active
   ed25519 [RFC8032] active

DKIM Hash Algorithms

   Registration Procedure(s)

 IETF Review

   Reference
           [RFC6376]

   Available Formats
           [IMG]
           CSV

    Type      Reference       Status
    sha1  [RFC6376][RFC8301] historic
   sha256 [FIPS-180-3-2008]  active

DKIM Service Types

   Registration Procedure(s)

 IETF Review

   Reference
           [RFC6376]

   Available Formats
           [IMG]
           CSV

   Type  Reference Status
   email [RFC6376] active
     *   [RFC6376] active

DKIM Selector Flags

   Registration Procedure(s)

 IETF Review

   Reference
           [RFC6376]

   Available Formats
           [IMG]
           CSV

   Type Reference Status
    y   [RFC6376] active
    s   [RFC6376] active

Authorized Third-Party Signature (ATPS) Tag Registry

   Registration Procedure(s)

 Specification Required

   Expert(s)

 Unassigned

   Reference
           [RFC6541]

   Available Formats
           [IMG]
           CSV

   Tag Reference Status
    d  [RFC6541] active
    v  [RFC6541] active

DKIM Reporting Tag Registry

   Registration Procedure(s)

 Specification Required

   Expert(s)

 Unassigned

   Reference
           [RFC6651]

   Available Formats
           [IMG]
           CSV

   Tag Reference Status
   ra  [RFC6651] active
   rp  [RFC6651] active
   rr  [RFC6651] active
   rs  [RFC6651] active

   Licensing Terms