Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
suhrkamp.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 08:01:32 UTC · ↺ Refresh
MX Hostnames
- suhrkamp-de.mail.protection.outlook.com
MX Priorities
- suhrkamp-de.mail.protection.outlook.com: 10
A / AAAA Records
- 92.205.180.228 ↩ 228.180.205.92.host.secureserver.net
Mail Server IPs
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.brandshelter.com tech.brandshelter.com 2025080100 10800 3600 604800 300
Primary NS (mname)
ns1.brandshelter.com
Admin Email (rname)
tech@brandshelter.com
Serial
2025080100
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns2.brandshelter.de
ns1.brandshelter.com
ns4.brandshelter.net
ns3.brandshelter.info
ns5.brandshelter.us
SPF Record
✓ Strict (-all)
v=spf1 ip4:212.121.133.112/28 ip4:213.61.106.88/29 ip4:83.169.1.219/32 include:_spf.wirth-horn.de include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- SPFv=spf1 ip4:212.121.133.112/28 ip4:213.61.106.88/29 ip4:83.169.1.219/32 include:_spf.wirth-horn.de include:spf.protection.outlook.com -all
- vt3mct71kr4mth2uakf1kp36vv
- L97Hp4r6Qjbu3oHzzW6i10ZPvmHI4tm4A+Ed0yl3vj8BWtEkKDq6i3g/17u99DTKZTsJKC5rjyFWVL2RqvghUw==
- google-site-verification=zf0xk-WITgSpJZ9B31ubuYHaZsNxvkKI8G7jVfFZf8Q
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