Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
premierukbusiness.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 16:07:34 UTC · ↺ Refresh
MX Hostnames
- premierukbusiness-com.mail.protection.outlook.com
MX Priorities
- premierukbusiness-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.166.181 (no PTR)
- 104.21.16.63 (no PTR)
- 2606:4700:3033::6815:103f
- 2606:4700:3034::ac43:a6b5
Mail Server IPs
- 52.101.99.0 ↩ mail-cwxp265cu00600.inbound.protection.outlook.com
- 52.101.89.2 ↩ mail-lo3p265cu00302.inbound.protection.outlook.com
- 52.101.89.1 ↩ mail-lo0p265cu00201.inbound.protection.outlook.com
- 52.101.89.0 ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
- 2a01:111:f403:ca0b::1 ↩ mail-lo3p265cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca1a:: ↩ mail-cwxp265cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca0b::2 ↩ mail-lo0p265cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca1a::1 ↩ mail-cwxp265cu00601.inbound.protection.outlook.com
SOA Record
Raw SOA
guy.ns.cloudflare.com dns.cloudflare.com 2399435721 10000 2400 604800 1800
Primary NS (mname)
guy.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399435721
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
isla.ns.cloudflare.com
guy.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
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected];ruf=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- ip4:92.205.180.35
- SPFv=spf1 include:spf.protection.outlook.com -all
- vh88o44btks1qegapgfaad0plg
- 5qd50k7s1lkdcj32860qmhdkqp
- MS=ms77809325
- google-site-verification=Mq3-Je7H1NshKxCT6-HASXPmVM4N-nEntJWP4opKgB4
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