Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
codeguys.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 11:32:04 UTC · ↺ Refresh
MX Hostnames
- codeguys-co-uk.mail.protection.outlook.com
MX Priorities
- codeguys-co-uk.mail.protection.outlook.com: 0
A / AAAA Records
- 185.199.220.114 ↩ mayfly-lon.cloudhosting.uk
Mail Server IPs
- 52.101.89.0 ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
- 52.101.99.2 ↩ mail-cwxp265cu00502.inbound.protection.outlook.com
- 52.101.99.0 ↩ mail-cwxp265cu00600.inbound.protection.outlook.com
- 52.101.89.2 ↩ mail-lo3p265cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca0b::1 ↩ mail-lo3p265cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca0b:: ↩ mail-lo2p265cu02300.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
SOA Record
Raw SOA
ns1.codeguys.co.uk admin.demo.mayfly-lon.cloudhosting.uk 2026031201 3600 1800 1209600 86400
Primary NS (mname)
ns1.codeguys.co.uk
Admin Email (rname)
admin@demo.mayfly-lon.cloudhosting.uk
Serial
2026031201
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.codeguys.co.uk
ns1.codeguys.co.uk
SPF Record
✓ Strict (-all)
v=spf1 ip4:185.199.220.114 include:relay.k.io a mx ip4:109.70.148.67 ip4:81.19.215.221 ip4:185.199.220.67 include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;adkim=s;aspf=s;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- apple-domain-verification=n8t1AML2hUdJUNfxdTE1C72sdLmGXKn1D_qyAZ6XvLI
- google-site-verification=ilNPx1XvUT37-i3u8MyBDhKXERvGqnedJlQW_a39uDQ
- SPFv=spf1 ip4:185.199.220.114 include:relay.k.io a mx ip4:109.70.148.67 ip4:81.19.215.221 ip4:185.199.220.67 include:spf.protection.outlook.com -all
- MS=ms19840527
Full email verification for codeguys.co.uk
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