8
records
IPv6 Addresses
TTL
20m
fs.cs.hm.edu. 1200 IN AAAA 2001:4CA0:6800:2:0:0:0:2
Mail Servers
TTL
fs.cs.hm.edu. 1200 IN MX 100 mail.fs.cs.hm.edu. fs.cs.hm.edu. 1200 IN MX 110 mailrelay2.lrz.de. fs.cs.hm.edu. 1200 IN MX 110 mailrelay1.lrz.de.
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
19m
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.
No aggregate report URIs (RUA).
DMARC
RUF
Forensic (per-failure) reports. Often omitted for privacy or volume.
No forensic report URIs (RUF).
fs.cs.hm.edu. 1199 IN DMARC v=DMARC1; p=quarantine; adkim=s; aspf=s; pct=100; sp=reject
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | ip4 |
|
||
| Modifier | redirect |
|
19m
fs.cs.hm.edu. 1199 IN TXT "v=spf1 ip4:141.40.176.37 redirect=_spf.mail.lrz.de"
DNSSEC Signatures
TTL
RRSIG
A 8 4 7200 1788948871 1781690392 14908 cs.hm.edu C2GocWVf4xtlk+NVJg0+dbkuZLswZAV2DoW8dBKi330q04zNibf/hubls+9hHYfi1mEcIk+NwUqtE//lyqbxhONEqnfg6Ik4QA3CUrt37S2stfP2xxX4Gj+vTrHDXRtp1o/sucpXKzJ6crvsNI9PCjRV9z//f5NCk4pv30/sDNP/bYSgxq+mChQBHjTt57UxgzgWMSWH5OXvWp0rWDdFTgZoQMQuYOU0cFiGv6BWZBp1tzQ3iH0Ak5DjN67HfYibCPZyZzs7wsAcmXgG1eHHI3xElj6MFPEjAMVHiwPGzqgepCRlKznB7Gm1yE5Dew8YXyX6AU9+PkBfmvG9MgTDGw==
20m
fs.cs.hm.edu. 1200 IN RRSIG A 8 4 7200 1788948871 1781690392 14908 cs.hm.edu C2GocWVf4xtlk+NVJg0+dbkuZLswZAV2DoW8dBKi330q04zNibf/hubls+9hHYfi1mEcIk+NwUqtE//lyqbxhONEqnfg6Ik4QA3CUrt37S2stfP2xxX4Gj+vTrHDXRtp1o/sucpXKzJ6crvsNI9PCjRV9z//f5NCk4pv30/sDNP/bYSgxq+mChQBHjTt57UxgzgWMSWH5OXvWp0rWDdFTgZoQMQuYOU0cFiGv6BWZBp1tzQ3iH0Ak5DjN67HfYibCPZyZzs7wsAcmXgG1eHHI3xElj6MFPEjAMVHiwPGzqgepCRlKznB7Gm1yE5Dew8YXyX6AU9+PkBfmvG9MgTDGw==