6
records
Canonical Names
TTL
5m
learn.readcube.com. 300 IN CNAME learn.readcube.com.skilljarapp.com.
IPv4 Addresses
TTL
learn.readcube.com. 60 IN A 52.85.193.101 learn.readcube.com. 60 IN A 52.85.193.28 learn.readcube.com. 60 IN A 52.85.193.8 learn.readcube.com. 60 IN A 52.85.193.89
DMARC
TTL
DMARC
Policy
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
none
quarantine
reject
5m
DMARC
Percentage
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100
DMARC
RUA
mailto:[email protected]
Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
DMARC
RUF
Forensic (per-failure) reports. Often omitted for privacy or volume.
No forensic report URIs (RUF).
learn.readcube.com. 300 IN DMARC v=DMARC1; p=none; rua=mailto:[email protected];