7
records
IPv4 Addresses
TTL
platform.mayoclinic.org. 1200 IN A 129.176.1.87
Mail Servers
TTL
MX
—
20
20m
MX
—
20
20m
MX
—
20
20m
MX
—
20
20m
platform.mayoclinic.org. 1200 IN MX 20 mail5.mayo.edu. platform.mayoclinic.org. 1200 IN MX 20 mail3.mayo.edu. platform.mayoclinic.org. 1200 IN MX 20 mail2.mayo.edu. platform.mayoclinic.org. 1200 IN MX 20 mail4.mayo.edu.
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
Subdomain Policy
Subdomain policy (sp): when set, it applies to hostnames below this domain instead of p; if omitted, subdomains inherit the organizational policy.
none
quarantine
reject
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.
platform.mayoclinic.org. 300 IN DMARC v=DMARC1; p=reject; sp=reject; pct=100; rf=afrf; ri=86400; fo=1; aspf=r; adkim=s; ruf=mailto:[email protected]; rua=mailto:[email protected]
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | mx |
—
|
|
|
| + Pass | include |
|
||
| + Pass | include |
|
||
| - Fail | all |
—
|
|
5m
platform.mayoclinic.org. 300 IN TXT "v=spf1 mx include:nam.pb-dynmktg.com include:21908805.spf06.hubspotemail.net -all"