SPF results

For details about how to enable SPF lookups see 4.3. Settings.

After the SPF check is performed the X-Metadefender-Spf-Result header will be added to the email and the value will be one of the following:

Header value	Description
Pass	A pass result is an explicit statement that the client is authorized to inject mail with the given identity.
NoRecord	A result of norecord means either No syntactically valid DNS domain name was extracted from the SMTP session that could be used as the one to be authorized, or No SPF records were retrieved from the DNS.
SoftFail	A softfail result is a weak statement by the publishing ADMD that the host is probably not authorized. It has not published a stronger, more definitive policy that results in a hardfail.
HardFail	A hardfail result is an explicit statement that the client is not authorized to use the domain in the given identity.
Error	An error result means the SPF verifier encountered a transient (generally DNS) error while performing the check. A later retry may succeed without further DNS operator action.
Neutral	A neutral result means the ADMD has explicitly stated that it is not asserting whether the IP address is authorized.
Unknown	An unknown result means the domain's published records could not be correctly interpreted. This signals an error condition that definitely requires DNS operator intervention to be resolved.
UnknownMechanism	An unknownmechanism result means that the ADMD uses a mechanism not recognized by this client.

SPF related headers

Header	Description
X-Metadefender-Spf-Result	Result of SPF lookup. See the SPF results section.
X-Metadefender-Spf-Sender	Sender email used for SPF lookup.
X-Metadefender-Spf-Ip	IP address used in SPF lookup.
X-Metadefender-Spf-Reason	Description of the reason, when SPF lookup failed for a reason.

For details about how to enable DKIM verifications see 4.3. Settings.

After the DKIM check is performed the X-Metadefender-Dkim-Result header will be added to the email and the value will be one of the following:

Header value	Description
Valid	Signature verification was successful and email has not been modified since submission.
Invalid	Signature verification was NOT successful and this email could be forged/modified during its transit.
Empty	No DKIM signature header was found in the email.
Error	An unexpected error occurred while attempting to verify the DKIM signature.