Sender Authentication¶
In the console: Settings › MTA › Inbound › Sender Authentication
The checks that tell real mail from forged mail (SPF, DKIM, DMARC), and how strict to be with mail that fails them.
DKIM Verification¶
Strategy¶
Whether DKIM verification is strict, relaxed or disabled.
Settings of their own: see Expression. Name in the API: dkimVerify.
Ignore insecure DKIM signatures¶
Whether to ignore insecure DKIM signatures such as those containing a length parameter.
On or off. Default: On. Name in the API: dkimStrict.
DKIM Signing¶
Signature¶
Domain to use for DKIM signing.
Settings of their own: see Expression. Name in the API: dkimSignDomain.
DMARC Verification¶
Strategy¶
Whether DMARC verification is strict, relaxed or disabled.
Settings of their own: see Expression. Name in the API: dmarcVerify.
ARC Verification¶
Strategy¶
Whether ARC verification is strict, relaxed or disabled.
Settings of their own: see Expression. Name in the API: arcVerify.
SPF Verification¶
EHLO¶
Whether SPF EHLO verification is strict, relaxed or disabled.
Settings of their own: see Expression. Name in the API: spfEhloVerify.
MAIL FROM¶
Whether SPF MAIL FROM verification is strict, relaxed or disabled.
Settings of their own: see Expression. Name in the API: spfFromVerify.
Reverse IP Verification¶
Reverse IP¶
How strict to be when verifying the reverse DNS of the client IP.
Settings of their own: see Expression. Name in the API: reverseIpVerify.