8
records
IPv4 Addresses
TTL
careerboost.du.edu. 300 IN A 104.21.45.6 careerboost.du.edu. 300 IN A 172.67.207.12
IPv6 Addresses
TTL
careerboost.du.edu. 300 IN AAAA 2606:4700:3032:0:0:0:6815:2D06 careerboost.du.edu. 300 IN AAAA 2606:4700:3036:0:0:0:AC43:CF0C
Name Servers
TTL
careerboost.du.edu. 1200 IN NS brett.ns.cloudflare.com. careerboost.du.edu. 1200 IN NS carol.ns.cloudflare.com.
SOA Details
TTL
20m
SOA
Responsible
dns.cloudflare.com
SOA
Serial
2410202043
SOA
Times
Refresh
2h
Retry
40m
Expire
7d
Minimum TTL
30m
careerboost.du.edu. 1200 IN SOA brett.ns.cloudflare.com. dns.cloudflare.com. 2410202043 10000 2400 604800 1800
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
Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
DMARC
RUF
mailto:[email protected]
Forensic (per-failure) reports. Often omitted for privacy or volume.
careerboost.du.edu. 300 IN DMARC v=DMARC1; p=none; fo=1; rua=mailto:[email protected],mailto:[email protected], mailto:[email protected];ruf=mailto:[email protected]