Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cosy-flats.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 15:10:05 UTC · ↺ Refresh
MX Hostnames
- cosyflats-com01b.mail.protection.outlook.com
MX Priorities
- cosyflats-com01b.mail.protection.outlook.com: 1
A / AAAA Records
- 198.202.211.1 (no PTR)
Mail Server IPs
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1098.ui-dns.com hostmaster.1und1.de 2017072904 28800 7200 604800 300
Primary NS (mname)
ns1098.ui-dns.com
Admin Email (rname)
hostmaster@1und1.de
Serial
2017072904
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1098.ui-dns.de
ns1098.ui-dns.org
ns1098.ui-dns.com
ns1098.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:spf.protection.outlook.com -all
- google-site-verification=DQRtQExCLQ-lOT5djuD17hUqvwgY-U-_v2jgCHRP1eI
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