10
records
Name Servers
TTL
NS
—
20m
NS
—
20m
NS
—
20m
NS
—
20m
NS
—
20m
seas.wustl.edu. 1200 IN NS ns00.ip.wustl.edu. seas.wustl.edu. 1200 IN NS ns01.ip.wustl.edu. seas.wustl.edu. 1200 IN NS ns02.ip.wustl.edu. seas.wustl.edu. 1200 IN NS ns03.ip.wustl.edu. seas.wustl.edu. 1200 IN NS ns04.ip.wustl.edu.
Mail Servers
TTL
seas.wustl.edu. 1200 IN MX 10 seas-wustl-edu.mail.protection.outlook.com.
SOA Details
TTL
20m
SOA
Responsible
noc.wustl.edu
SOA
Serial
4341883
SOA
Times
Refresh
3h
Retry
1h
Expire
28d
Minimum TTL
15m
seas.wustl.edu. 1200 IN SOA ns00.ip.wustl.edu. noc.wustl.edu. 4341883 10800 3600 2419200 900
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
20m
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
mailto:[email protected]
Forensic (per-failure) reports. Often omitted for privacy or volume.
seas.wustl.edu. 1200 IN DMARC v=DMARC1;p=none;pct=100;fo=1;rua=mailto:[email protected];ruf=mailto:[email protected]
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
|
||
| + Pass | ip4 |
|
20m
seas.wustl.edu. 1200 IN TXT "v=spf1 include:spf.protection.outlook.com ip4:128.252.0.0/16"
Text Content
TTL
TXT
—
YAJa5gk1K9dHL7tUEbxYkcaMdMrCQM2smGdoUH9yf/I6gncor1M+T+NXivaxdtN2/nSwfOv8zixRoCnRws8aeg==
20m
seas.wustl.edu. 1200 IN TXT "YAJa5gk1K9dHL7tUEbxYkcaMdMrCQM2smGdoUH9yf/I6gncor1M+T+NXivaxdtN2/nSwfOv8zixRoCnRws8aeg=="