namechep and DOB

Hi,

I'm seeing emails from smartlendingclub dot com getting through that are
clearly spam. It's a namecheap domain registered in the last two weeks or
so.

IIRC, in the past there was more flexibility with the URIBL_RHS_DOB rules
to penalize domains recently registered, but now it doesn't appear to have
hit any rules related to registration dates.

Domain name: smartlendingclub dot com
Registry Domain ID: 2891563192_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.namecheap.com
Registrar URL: http://www.namecheap.com
Updated Date: 0001-01-01T00:00:00.00Z
Creation Date: 2024-06-17T18:42:01.00Z
Registrar Registration Expiration Date: 2025-06-17T18:42:01.00Z

This email also hit the following rules:
describe RCVD_IN_IADB_VOUCHED   ISIPP IADB lists as vouched-for sender

But this rule has virtually 0 score?
describe RCVD_IN_IADB_DOPTIN_LT50  IADB: Confirmed opt-in used less than
50% of the time

It hit some other IADB rules like RCVD_IN_IADB_SENDERID but not any DOB
rules. Am I missing something? Maybe it was the HOSTKARMA rules I'm
remembering?

Are there RBLs available that can be used to determine registrar or date of
registration? I understand the limits of querying a registrar but thought
there might be an RBL out there with this info?