Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stbv-nrw.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 10:59:29 UTC · ↺ Refresh
MX Hostnames
- stbvnrw-de01b.mail.protection.outlook.com
MX Priorities
- stbvnrw-de01b.mail.protection.outlook.com: 10
A / AAAA Records
- 87.106.113.57 ↩ ip87-106-113-57.pbiaas.com
Mail Server IPs
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
nsa3.schlundtech.de billing.mehrwert.net 2025100905 43200 7200 1209600 600
Primary NS (mname)
nsa3.schlundtech.de
Admin Email (rname)
billing@mehrwert.net
Serial
2025100905
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
nsc3.schlundtech.de
nsb3.schlundtech.de
nsd3.schlundtech.de
nsa3.schlundtech.de
SPF Record
✓ Strict (-all)
v=spf1 include:de._netblocks.mimecast.com ip4:89.246.175.70 ip4:85.14.242.108 ip4:85.14.242.105 ip4:62.138.249.6 ip4:185.132.45.91 ip4:87.106.113.47 ip4:92.50.104.70 include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- 0ed1fe018a922fef332bcb46feb9237097d80bdfd9
- brevo-code:8d4dccfd4e568e75eed9c70930cf2b47
- SPFv=spf1 include:de._netblocks.mimecast.com ip4:89.246.175.70 ip4:85.14.242.108 ip4:85.14.242.105 ip4:62.138.249.6 ip4:185.132.45.91 ip4:87.106.113.47 ip4:92.50.104.70 include:spf.protection.outlook.com -all
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