Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bnn.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-03 12:03:38 UTC · ↺ Refresh
MX Hostnames
- bnn-de.mail.protection.outlook.com
MX Priorities
- bnn-de.mail.protection.outlook.com: 10
A / AAAA Records
- 52.85.61.103 ↩ server-52-85-61-103.ewr53.r.cloudfront.net
- 52.85.61.59 ↩ server-52-85-61-59.ewr53.r.cloudfront.net
- 52.85.61.112
- 52.85.61.12
- 2600:9000:2209:6400:17:83c8:f080:93a1
- 2600:9000:2209:be00:17:83c8:f080:93a1
- 2600:9000:2209:5800:17:83c8:f080:93a1
- 2600:9000:2209:1e00:17:83c8:f080:93a1
- 2600:9000:2209:6a00:17:83c8:f080:93a1
- 2600:9000:2209:2600:17:83c8:f080:93a1
- 2600:9000:2209:4600:17:83c8:f080:93a1
- 2600:9000:2209:2a00:17:83c8:f080:93a1
Mail Server IPs
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.nodesecure.com hostmaster.leitwerk.de 2026033100 10000 3600 604800 3600
Primary NS (mname)
ns1.nodesecure.com
Admin Email (rname)
hostmaster@leitwerk.de
Serial
2026033100
Refresh
10000s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.nodesecure.de
ns1.nodesecure.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com mx ip4:193.202.119.68 ip4:193.202.119.69 ip4:193.202.119.70 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
14 records- duo_sso_verification=F4BLT0hR60VnVUcEa9PsFX9BecV5aDaU0VECbOzEg63onZ2NCrZKyntGhj52ETgM
- google-site-verification=VUfVFjnTAWcm3hI_bdKzX0_NHY5MOykfMk3frmFQqGw
- ZOOM_verify_UoYx6X7vQiuAIpfnB8OrFg
- miro-verification=125c3970cfa78a5caed01e606dda8b7c4de3cc4c
- stripe-verification=bcc73fbff9c4dd76102e9e3eac222d4024886e29530ea9b73ab4d18a32d54b70
- asv=01c32ab9d8b5ca5c4c2b5d720dd57ad8
- apple-domain-verification=AKS2qir0N1T6b1Tc
- maxcluster-domain-verification=1ubrnawqaxjxr37c16esinp6dascvlov
- SPFv=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com mx ip4:193.202.119.68 ip4:193.202.119.69 ip4:193.202.119.70 -all
- sophos-domain-verification=ba36af430bb5b0b700de3441ffba5a40bbdf91d9b6717a0603440963034b9bfe
- slack-domain-verification=DwKeRIppYu9WgQJKsdfBiuOZlZs67fIVO1XWquOp
- MS=DF2ADD22635A85005AB14B36026AB7EDF43427C2
- sophos-domain-verification=dca2fa4613dae99d9b1bd0c2a5d763e00b51096c
- linkedin-site-verification=9864e9fa-b3f7-42ea-8b70-5e81b2a6ce8e
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