TODO

0.9.1 (Alpha)
Sign rsa/ed25519    implemented
Verify rsa/ed25519  implemented
Domain              implemented
KeyFile             implemented
KeyFileEd25519      implemented
Mode                implemented
PidFile             implemented     verified
Selector            implemented
Socket              implemented     verified
Syslog              implemented     partly tested
UMask
UserID              implemented     verified

0.9.5 (Beta)
dkimpy-milter.8
dkimpy-milter.service
remove PidFile on stop
AuthservID
Canonicalization
Diagnostics
DiagnosticDirectory
InternalHosts
SyslogFacility
SyslogSuccess

1.0.0
No additional features planned

Considered for near-term feature release

AlwaysAddARHeader
ChangeRootDirectory
ClockDrift (requires dkimpy change)
DNSTimeout (requires dkmpy change)
MacroList
MilterDebug
MinimumKeyBits
PeerList
SignatureAlgorithm

Later

BaseDirectory
DontSignMailTo
ExemptDomains
ExternalIgnoreList
FixCRLF
KeepAuthResults
KeepTemporaryFiles
KeyTable
KeytableEd25519
LogResults
LogWhy
MaximumHeaders
MaximumSignaturesToVerify
MultipleSignatures
MustBeSigned
NoHeaderB 
OmitHeaders
On-BadSignature
On-Default
On-DNSError
On-InternalError
On-KeyNotFound
On-NoSignature
On-SignatureError
OversignHeaders
RemoveARAll
RemoveARFrom
RemoveOldSignatures 
RequiredHeaders 
RequireSafeKeys
SignatureAlgorithm
SignatureTTL
SignHeaders
SigningTable
SoftwareHeader
StrictHeaders
SubDomains
TemporaryDirectory
TestDNSData
TestPublicKeys

Other OpenDKIM options not contemplated