Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
credential.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 17:08:17 UTC · ↺ Refresh
MX Hostnames
- credential-co-uk.mail.protection.outlook.com
MX Priorities
- credential-co-uk.mail.protection.outlook.com: 10
A / AAAA Records
- 185.151.30.142 ↩ 185-151-30-142.ptr4.stackcp.net
Mail Server IPs
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1079.ui-dns.org hostmaster.1and1.co.uk 2017021831 28800 7200 604800 300
Primary NS (mname)
ns1079.ui-dns.org
Admin Email (rname)
hostmaster@1and1.co.uk
Serial
2017021831
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1079.ui-dns.org
ns1079.ui-dns.biz
ns1079.ui-dns.com
ns1079.ui-dns.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:51.52.205.127 include:spf.protection.outlook.com include:spf.stackmail.com include:spf.uk.exclaimer.net a mx -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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 ip4:51.52.205.127 include:spf.protection.outlook.com include:spf.stackmail.com include:spf.uk.exclaimer.net a mx -all
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