Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
spz-solnhofen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 21:16:12 UTC · ↺ Refresh
MX Hostnames
- mx1.mas.t-systems-service.com
- mx3.mas.t-systems-service.com
- mx2.mas.t-systems-service.com
MX Priorities
- mx2.mas.t-systems-service.com: 20
- mx3.mas.t-systems-service.com: 30
- mx1.mas.t-systems-service.com: 10
A / AAAA Records
- 88.99.173.216 ↩ web01.esp-hosting.de
- 2a01:4f8:c0c:5de::2 ↩ web01.esp-hosting.de
Mail Server IPs
- 217.150.155.10 ↩ mgb-mta01.mas.t-systems-service.com
- 46.29.101.2 ↩ muc-mta02.mas.t-systems-service.com
- 217.150.155.12 ↩ mgb-mta02.mas.t-systems-service.com
- 46.29.101.1 ↩ muc-mta01.mas.t-systems-service.com
- 94.100.254.155 ↩ ffm-mta01.mas.t-systems-service.com
SOA Record
Raw SOA
ns1040.ui-dns.de hostmaster.1und1.de 2017020323 28800 7200 604800 300
Primary NS (mname)
ns1040.ui-dns.de
Admin Email (rname)
hostmaster@1und1.de
Serial
2017020323
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1040.ui-dns.de
ns1040.ui-dns.org
ns1040.ui-dns.com
ns1040.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 a:spf.mas.t-systems-service.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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 a:spf.mas.t-systems-service.com -all
- amazon-business-verification=3a3eec6b08251128cd9c9919638eeab522f22150a467459fdd78da7afac82629
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