IPv4 Addresses

TTL

Name Servers

TTL

Mail Servers

TTL
20m

SOA Details

TTL
SOA Primary NS
20m
SOA Responsible
hostmaster.stserafim.org
SOA Serial
2025052604
SOA Times
Refresh 3h
Retry 1h
Expire 7d
Minimum TTL 1h

Certificate Authority Authorization

TTL

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 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

Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.

mailto:[email protected]!100m
DMARC RUF

Forensic (per-failure) reports. Often omitted for privacy or volume.

mailto:[email protected]!100m

DKIM

TTL

No DKIM TXT with `v=DKIM1` was returned for the selector names we probe automatically.

SPF (Sender Policy Framework)

TTL
SPF SPFv1
Qualifier Mechanism Target / value Valid Details
+ Pass ip4
+ Pass ip4
+ Pass ip4
+ Pass a
+ Pass a
+ Pass a
+ Pass a
+ Pass a
- Fail all
20m

MTA-STS

TTL

This hostname does not publish an MTA-STS policy (no v=STSv1 TXT at _mta-sts.<name> and/or no policy at https://mta-sts.<name>/.well-known/mta-sts.txt).