Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cornelsen.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 15:23:19 UTC · ↺ Refresh
MX Hostnames
- cornelsen-de.mail.protection.outlook.com
MX Priorities
- cornelsen-de.mail.protection.outlook.com: 0
A / AAAA Records
- 3.77.194.191 ↩ ec2-3-77-194-191.eu-central-1.compute.amazonaws.com
- 3.68.153.217 ↩ ec2-3-68-153-217.eu-central-1.compute.amazonaws.com
- 63.177.153.195
Mail Server IPs
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1277.awsdns-31.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1277.awsdns-31.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-771.awsdns-32.net
ns-1277.awsdns-31.org
ns-1757.awsdns-27.co.uk
ns-264.awsdns-33.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:194.39.190.120 ip4:194.39.190.127 ip4:194.39.189.0/24 include:spf.protection.outlook.com include:spfa.cornelsen.de include:spf.hornetsecurity.com include:_spf.rexx-suite.com include:_spf.qp-mail.eu include:_spf.tivian.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
21 records- jamf-site-verification=jhRf0g6Yo6ij6f9HrS8mtg
- SPFv=spf1 ip4:194.39.190.120 ip4:194.39.190.127 ip4:194.39.189.0/24 include:spf.protection.outlook.com include:spfa.cornelsen.de include:spf.hornetsecurity.com include:_spf.rexx-suite.com include:_spf.qp-mail.eu include:_spf.tivian.com ~all
- extensis-domain-verification=d39c624e-715d-4d88-be9a-63bf49dc2697
- google-site-verification=2Q9tZz5nHSWE65oB8Uve9P-ji_oyafecp2Dr600-Zpk
- cursor-domain-verification-t6wq93=Y4lzs5nNc1kXGVbMsSCgZZlmP
- atlassian-sending-domain-verification=ca8d00ff-d08e-4ab7-a729-19a6778e2f9c
- google-site-verification=aqFKhBTmzR4NFf7pxWpKJ7kpT3WXU9TI-J41Ggr-UXg
- MS=ms38972756
- adobe-idp-site-verification=075eefcd8c33f186361df81cd071b736d6ad72a67e45403e81a51e1abc127a35
- mindmanager-verification=b9efeea84fa602423d14f9bac7387c9ae2b0378134268885e3129f5cd7ccd2c0
- elevenlabs=WI20cXefWxZmhjDt-G4BT0pJ0XV5b5MLRLHKFEd_Bgw
- infoblox-domain-mastery=1f1e1b6c6cd0b91a64b41d81e1c259bad01d8ef277b2d2b00df443084e110f2cb6
- WUnqPK33toxdXOu3xyB3X09vypLHEVEJbmi7VwL2tux5VAK2IzqV2DoBVYT+gjABWZbwQOAHvlnvPKPwO9rSbA==
- atlassian-domain-verification=UKhaASuiBgHSP1HFyGFpCg97gxAB3ajCWeNoCi9UhFezOaeLQdoEusxD40HaIWDw
- amazon-business-verification=f4168904c8be60d1d4877d9ff159908bd25425a8c06daa228a6982d8da6d0194
- docker-verification=8eaf80ae-69fb-4bf3-990b-ca7f91b5d3ba
- google-site-verification=rBaY0LQ0GsZP8eVbJMUNXLzhJsJZ7_BoKIVNoqBYUrc
- Nfp2DdukBLyMwZ1MZSQATjRw6Ajr94CXzmd1LsNJqVAVaSGPxpvlZka2OtwCOlMxAG66SNxUzsAy3+h5gJ/N9g==
- extensis-domain-verification=226bf594-c323-4667-ad13-73afbf8a47ad
- figma-domain-verification=78640750bb0cfa14d7920dce6c3b79347f6fb7ae97a3d1b017e990ca2230b1f6-1773731634
- apple-domain-verification=xGReqLiL3uORi91J
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