Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
layer-gruppe.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 21:03:15 UTC · ↺ Refresh
MX Hostnames
- layergruppe-de01c.mail.protection.outlook.com
MX Priorities
- layergruppe-de01c.mail.protection.outlook.com: 10
A / AAAA Records
- 85.13.128.172 ↩ dd38416.kasserver.com
Mail Server IPs
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.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
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns5.kasserver.com hostmaster.kasserver.com 2510271306 28800 7200 1209600 7200
Primary NS (mname)
ns5.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2510271306
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s
Nameservers (NS)
ns3.kas-dns-server.de
ns5.kasserver.com
ns6.kasserver.com
a-dns-service.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.mailjet.com ip4:62.204.172.236 include:spf.protection.outlook.com include:spf.mandrillapp.com include:_spf.elasticemail.com include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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- MS=ms59139268
- apple-domain-verification=SanFeqWKVnPfhOnh
- google-site-verification=s8Pky29ZkBPpaVJsWGU3HMbpveFxd4jR9BKDx2YMQLM
- SPFv=spf1 include:spf.mailjet.com ip4:62.204.172.236 include:spf.protection.outlook.com include:spf.mandrillapp.com include:_spf.elasticemail.com include:spf-de.emailsignatures365.com -all
- g6kp68lhq647ggtvw69sjz3lw467y4yg
- ca3-56085fba195f4aa8b62995dd518ead37
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