Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kessel.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 16:00:57 UTC · ↺ Refresh
MX Hostnames
- kessel-de.mail.protection.outlook.com
MX Priorities
- kessel-de.mail.protection.outlook.com: 0
A / AAAA Records
- 51.137.121.46 (no PTR)
Mail Server IPs
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
dns-prim.kessel.de hostmaster.dns-prim.kessel.de 2025122310 10800 1800 604800 3600
Primary NS (mname)
dns-prim.kessel.de
Admin Email (rname)
hostmaster@dns-prim.kessel.de
Serial
2025122310
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns-prim.kessel.de
d.ns14.net
b.ns14.net
c.ns14.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:178.239.72.128/26 ip4:62.157.247.0/27 ip6:2003:f0:6017::/48 ip6:2a02:2760:26::/64 include:spf.protection.outlook.com include:25527109.spf02.hubspotemail.net a:b.spf.service-now.com a:c.spf.service-now.com a:d.spf.service-now.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
✓ 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
6 records- bw=yS1INoNQWMXarG44q19/3N360lCwKc6Rph3MooIt7bLw
- SPFv=spf1 ip4:178.239.72.128/26 ip4:62.157.247.0/27 ip6:2003:f0:6017::/48 ip6:2a02:2760:26::/64 include:spf.protection.outlook.com include:25527109.spf02.hubspotemail.net a:b.spf.service-now.com a:c.spf.service-now.com a:d.spf.service-now.com -all
- atlassian-domain-verification=VKD9XsiUbv1Yh1rIlAz9et5JQ3ynaQaDaRXvhCPYwjmGZPrFDnmho1NhEZpms3qB
- apple-domain-verification=TWMjpa_3br42eQAkf__p0vbNhJ4W1fOqA2xu0eSk0u8
- bw=/RrJoDTtMF9t+/G1czybiTLY1avw1xE2q/m1bgh5WaDt
- 7AowDKheYVe+phDwB9n58ZyYlQR5S+19P64z3CSvBAfjjeNnK92n3cqBykT41nEmtCpdAEuMAB4GPmmQVxZKhw==
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