preview.co.uk

Valid Email Server
Domain Lookup › preview.co.uk
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
preview.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-10-30 05:45:43 UTC · ↺ Refresh

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MX Hostnames

  • preview-co-uk.mail.protection.outlook.com

MX Priorities

  • preview-co-uk.mail.protection.outlook.com: 0

A / AAAA Records

  • 45.157.42.57 ↩ 45.157.42.57.srvlist.ukfast.net

Mail Server IPs

  • 52.101.89.18 ↩ mail-lo3p265cu00502.inbound.protection.outlook.com
  • 52.101.89.28 ↩ mail-lo2p265cu02504.inbound.protection.outlook.com
  • 52.101.89.1 ↩ mail-lo0p265cu00201.inbound.protection.outlook.com
  • 52.101.99.2 ↩ mail-cwxp265cu00502.inbound.protection.outlook.com
  • 2a01:111:f403:ca0b::2 ↩ mail-lo0p265cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca0b:: ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
  • 2a01:111:f403:ca0b::6 ↩ mail-lo3p265cu00506.inbound.protection.outlook.com
  • 2a01:111:f403:ca0b::1 ↩ mail-lo3p265cu00301.inbound.protection.outlook.com

SOA Record

Raw SOA ns0.ukfast.net support.ukfast.co.uk 2026060403 7200 3600 604800 86400
Primary NS (mname)
ns0.ukfast.net
Admin Email (rname)
support@ukfast.co.uk
Serial
2026060403
Refresh
7200s
Retry
3600s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns1.ukfast.net
ns0.ukfast.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:77.86.34.0/24 ip4:46.175.48.0/24 include:spf.messageexchange.com include:mail1.preview.co.uk ip4:78.86.176.184 ip4:159.253.212.28 ip4:159.253.212.29 include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No 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

3 records
  • bsVA4FyrtUI/nOgtZdEuXSfeaVCX+D/7Kjs44r9OkVhdJDPSnVgZ1FExkkf+LoQQDZZCmmAfGFHi58lEk4nqhA==
  • SPFv=spf1 ip4:77.86.34.0/24 ip4:46.175.48.0/24 include:spf.messageexchange.com include:mail1.preview.co.uk ip4:78.86.176.184 ip4:159.253.212.28 ip4:159.253.212.29 include:spf.protection.outlook.com -all
  • 0ed1fe018ab4df07f8c1e8465095a6f9
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