Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bigger.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 03:51:44 UTC · ↺ Refresh
MX Hostnames
- bigger-de.mail.protection.outlook.com
MX Priorities
- bigger-de.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.168 ↩ 217-160-0-168.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::237 ↩ 2001-08d8-100f-f000-0000-0000-0000-0237.elastic-ssl.ui-r.com
Mail Server IPs
- 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
- 52.101.170.1 ↩ mail-fr4p281cu03101.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
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1035.ui-dns.org hostmaster.1und1.com 2017060126 28800 7200 604800 600
Primary NS (mname)
ns1035.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060126
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1096.ui-dns.com
ns1106.ui-dns.biz
ns1035.ui-dns.org
ns1070.ui-dns.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:217.160.0.168 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 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
5 records- zone-ownership-verification-78cf3fd0478ddb6fce8a41a349ee805644d8d17c770c96491c2e7f4a709115dd
- facebook-domain-verification=rqvp9khu2o28cror782dz11jv1okzv
- MS=ms36614941
- google-site-verification=SHoDPrjAFYyP5HIBDUX1bcpsODo9mDfN3FkZpUMYCB4
- SPFv=spf1 include:spf.protection.outlook.com ip4:217.160.0.168 -all
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