Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rexx-systems.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 20:00:28 UTC · ↺ Refresh
MX Hostnames
- mx002.rexx-systems.com
MX Priorities
- mx002.rexx-systems.com: 10
A / AAAA Records
- 213.95.153.122 (no PTR)
Mail Server IPs
- 213.95.153.126 ↩ mx002.rexx-systems.com
SOA Record
Raw SOA
ns1.routing.net hostmaster.routing.net 2025092200 3600 3600 86400 300
Primary NS (mname)
ns1.routing.net
Admin Email (rname)
hostmaster@routing.net
Serial
2025092200
Refresh
3600s
Retry
3600s
Expire
86400s
Minimum TTL
300s
Nameservers (NS)
ns1.routing.net
ns3.routing.net
ns2.routing.net
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.rexx-suite.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:_spf.rexx-suite.com -all
- nb-verification=s_zDAn0aJeLaPi954xmj6MbPBXKu8rX7Msc1bLWZBwA
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