Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
srs-sys.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 18:22:43 UTC · ↺ Refresh
MX Hostnames
- mx-01-a.dcl.srs-sys.de
- mx-02-a.dcl.srs-sys.de
MX Priorities
- mx-02-a.dcl.srs-sys.de: 10
- mx-01-a.dcl.srs-sys.de: 10
A / AAAA Records
- 212.99.217.164 (no PTR)
Mail Server IPs
- 212.99.217.166 ↩ mx-02-a.dcl.srs-sys.de
- 212.99.217.165 ↩ mx-01-a.dcl.srs-sys.de
SOA Record
Raw SOA
ns.inwx.de hostmaster.srs-sys.de 2026030402 10800 3600 1209600 86400
Primary NS (mname)
ns.inwx.de
Admin Email (rname)
hostmaster@srs-sys.de
Serial
2026030402
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns3.inwx.eu
ns.inwx.de
ns2.inwx.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.srs-sys.de -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s; rua=mailto:[email protected]; sp=reject; rf=afrf; pct=100;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms87122676
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.srs-sys.de -all
Full email verification for srs-sys.de
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