Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
biffar.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 03:49:54 UTC · ↺ Refresh
MX Hostnames
- biffar-de.mail.protection.outlook.com
MX Priorities
- biffar-de.mail.protection.outlook.com: 0
A / AAAA Records
- 85.13.133.209 ↩ dd11314.kasserver.com
Mail Server IPs
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns5.kasserver.com hostmaster.kasserver.com 2602251151 28800 7200 1209600 7200
Primary NS (mname)
ns5.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2602251151
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s
Nameservers (NS)
ns3.ai-dns.de
ns6.kasserver.com
ns5.kasserver.com
ns5.name-server-kas.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:213.183.84.218 include:_spf.mailersend.net include:_spf.wpcloud.com -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: 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- LpgSkaPM7XMcjBGRYinpTmdiZW6W9jZUnchmSSMLkOw=
- brevo-code:4def020e0b1b85c0ef90ae8174b53ab1
- google-site-verification=AZLYYLh34jlnk5ctoN7N5izLVjbmlC-eUgjvg88oIDM
- MS=ms68611776
- SPFv=spf1 include:spf.protection.outlook.com ip4:213.183.84.218 include:_spf.mailersend.net include:_spf.wpcloud.com -all
- seobility=3757271f5d06d3ca28f34c9685759eaa
Full email verification for biffar.de
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