Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
thomasons.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 12:47:56 UTC · ↺ Refresh
MX Hostnames
- thomasons-co-uk.mail.protection.outlook.com
MX Priorities
- thomasons-co-uk.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.27.45 (no PTR)
- 172.67.168.231 (no PTR)
- 2606:4700:3036::ac43:a8e7
- 2606:4700:3036::6815:1b2d
Mail Server IPs
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
ali.ns.cloudflare.com dns.cloudflare.com 2396656115 10000 2400 604800 1800
Primary NS (mname)
ali.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396656115
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ali.ns.cloudflare.com
cody.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:212.42.180.237 +mx +a +ip4:212.42.180.236 +ip4:185.41.8.179 +ip4:90.152.50.238 +ip4:78.158.52.114 +include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;adkim=r;aspf=r;pct=100;fo=1;rf=afrf;ri=86400;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],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
1 record- SPFv=spf1 ip4:212.42.180.237 +mx +a +ip4:212.42.180.236 +ip4:185.41.8.179 +ip4:90.152.50.238 +ip4:78.158.52.114 +include:spf.protection.outlook.com -all
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