Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ultrasmile.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 09:26:02 UTC · ↺ Refresh
MX Hostnames
- ultrasmile-co-uk.mail.protection.outlook.com
MX Priorities
- ultrasmile-co-uk.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.169.20 (no PTR)
- 104.21.27.87 (no PTR)
- 2606:4700:3033::6815:1b57
- 2606:4700:3031::ac43:a914
Mail Server IPs
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
elsa.ns.cloudflare.com dns.cloudflare.com 2397045763 10000 2400 604800 1800
Primary NS (mname)
elsa.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397045763
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
elsa.ns.cloudflare.com
seth.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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- facebook-domain-verification=38umx46j4r8vdavh1sid732ah0v7ki
- google-site-verification=7q2r7Gk_PaDUDBrGQROAUO48vkqXDK5bAey7FNOuf6Y
- SPFv=spf1 include:spf.protection.outlook.com -all
- SPFv=spf1 ip4:217.36.66.40/24 ip4:217.36.66.40/22 ?all
- MS=ms58862705
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