Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stroessner.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 17:25:23 UTC · ↺ Refresh
MX Hostnames
- mx1.tec-holistiq.de
MX Priorities
- mx1.tec-holistiq.de: 10
A / AAAA Records
- 159.69.52.164 ↩ isp1.tec-holistiq.de
Mail Server IPs
- 159.69.52.174 ↩ isp2.tec-holistiq.de
SOA Record
Raw SOA
ns03.tec-rrnetz.de info.stroessner.de 2026012801 14400 3600 1209600 300
Primary NS (mname)
ns03.tec-rrnetz.de
Admin Email (rname)
info@stroessner.de
Serial
2026012801
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns3.key-systems.net
ns1.key-systems.net
ns03.tec-rrnetz.de
ns2.key-systems.net
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a ip4:159.69.52.164 ip6:2a01:4f8:1c17:6bde::1 ip4:159.69.52.164 ip6:fe80::9400:ff:fe0d:c957 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms42129829
- SPFv=spf1 mx a ip4:159.69.52.164 ip6:2a01:4f8:1c17:6bde::1 ip4:159.69.52.164 ip6:fe80::9400:ff:fe0d:c957 ~all
Full email verification for stroessner.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits