Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sdmail.org.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 14:51:11 UTC · ↺ Refresh
MX Hostnames
- sdmail-org-uk.mail.protection.outlook.com
MX Priorities
- sdmail-org-uk.mail.protection.outlook.com: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns0.admhosting.co.uk support.adm-computing.co.uk 2026021603 3600 1800 1209600 86400
Primary NS (mname)
ns0.admhosting.co.uk
Admin Email (rname)
support@adm-computing.co.uk
Serial
2026021603
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.admhosting.co.uk
ns0.admhosting.co.uk
ns2.admhosting.co.uk
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;adkim=r;aspf=r;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: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
s1._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
6 records- spf.emailsignatures365.com
- SPFv=spf1 include:spf.protection.outlook.com -all
- _globalsign-domain-verification=VcQngeyQ-J0rpmWy8_BSMhfnr24bUPkCFaCManLZ-M
- google-site-verification=GEIl_n4j9fqdmhsrWDTowUZmjjEmJrJABCE7DLKhMe0
- MS=ms32964075
- amazonses:4O7Eai1Au29+0boLd+qQdfRlzq9yPigJPkxY8mG2NMc=
Full email verification for sdmail.org.uk
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