Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
three.co.uk
Yes
✓ Yes
Symantec
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-09-04 23:37:39 UTC · ↺ Refresh
MX Hostnames
- cluster3a.eu.messagelabs.com
- cluster3.eu.messagelabs.com
MX Priorities
- cluster3.eu.messagelabs.com: 10
- cluster3a.eu.messagelabs.com: 20
A / AAAA Records
- 184.28.129.94 ↩ a184-28-129-94.deploy.static.akamaitechnologies.com
Mail Server IPs
- 85.158.142.209 ↩ mail833.messagelabs.com
- 195.245.231.64 ↩ mail870.messagelabs.com
- 85.158.142.218 ↩ mail831.messagelabs.com
- 195.245.230.199 ↩ mail857.messagelabs.com
- 195.245.230.193 ↩ mail851.messagelabs.com
- 195.245.231.73 ↩ mail877.messagelabs.com
- 34.91.159.228 ↩ 228.159.91.34.bc.googleusercontent.com
SOA Record
Raw SOA
udns1.cscdns.net premiumdns.support.neustar 2019111675 21600 3600 2419200 86400
Primary NS (mname)
udns1.cscdns.net
Admin Email (rname)
premiumdns@support.neustar
Serial
2019111675
Refresh
21600s
Retry
3600s
Expire
2419200s
Minimum TTL
86400s
Nameservers (NS)
udns2.cscdns.uk
udns1.cscdns.net
SPF Record
✓ Soft Fail (~all)
v=spf1 a:spf.three.co.uk include:spf.messagelabs.com include:amazonses.com include:_spf.salesforce.com include:spf.mandrillapp.com include:eu.khoros-mail.com ip4:38.225.210.141 ip4:154.62.6.32 ip4:154.48.212.32 ~all
📊 DNS lookups: 6/10
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=none; pct=100; rua=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none
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
22 records- spf2.0/pra include:amazonses.com ~all
- google-site-verification=VdsLGbT1DASUWzOSB5F6veAAjCP4WFLnXRFywma-mWw
- Foxit-domain-verification=a1973bc6715fd10930c003af5e319103
- _7ab7lb4bbvl8hun595v7bvm3mswkjb1
- ZOOM_verify_qgUswQlqfVVJ2phebpsgbw
- google-site-verification=Z0ulq5JcG1BL81XP3M3UZE-zjR1up0Y-W34vzH2iatI
- dell-technologies-domain-verification=three.co.uk_f39eea05-2acd-40f1-b34c-5a54445b5a22_1714136992
- facebook-domain-verification=dvlv3jf5lebjoecpy22twwfmxzwsje
- docusign=cf3e2f8c-ab8b-4d24-ae50-8d43d16dc3f8
- _wdk5b597oy5lyiff0pfcimco7dyc70d
- mandrill_verify.WfEphEOk9HBpz7l2gGDe8A
- _yxvn8g9d5syx7rfbfkzl10zy09xj8rl
- _ffl5xnn904xn4f8w5iqy1hsm2bwxkbn
- MS=ms34745205
- _5b9frcrkqdy1vtub3kj52w7y9zsb9x5
- atlassian-domain-verification=5kJScYjPS5dVssGyzr9jyttO2SwuXrlBDc4GxaI1PuIlqvBJ5xptGFij7IHstk5p
- arclu57R4hsz0XPZeuOoRuu1pZ+SaoXlQ6+c4FIAxVATTFvpSysyKjlCamgxWZVNKHcFRWFqIgixsy2cqY3sOQ==
- asv=6f2ac7ac38ad04eb7a13296d361f9c38
- MS=ms14753536
- adobe-idp-site-verification=bf02607f6fea445e2765f8b957d42181694749838f1db310b3fabe6a79c727ce
- docusign=4daeafb5-3d70-4165-ad60-3945d56dbef1
- SPFv=spf1 a:spf.three.co.uk include:spf.messagelabs.com include:amazonses.com include:_spf.salesforce.com include:spf.mandrillapp.com include:eu.khoros-mail.com ip4:38.225.210.141 ip4:154.62.6.32 ip4:154.48.212.32 ~all
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