Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bt.com
Yes
✓ Yes
Outlook
No
Yes
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 06:26:54 UTC · ↺ Refresh
MX Hostnames
- btgroupcloud-mail-onmicrosoft-com.mail.protection.outlook.com
MX Priorities
- btgroupcloud-mail-onmicrosoft-com.mail.protection.outlook.com: 10
A / AAAA Records
- 45.60.72.23 (no PTR)
- 45.60.65.23 (no PTR)
Mail Server IPs
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
SOA Record
Raw SOA
eddns0.bt.com zzdnsr.bt.com 2006031193 28800 7200 604800 600
Primary NS (mname)
eddns0.bt.com
Admin Email (rname)
zzdnsr@bt.com
Serial
2006031193
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
dydns0.bt.com
dydns1.bt.com
eddns0.bt.com
eddns1.bt.com
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
No TXT records found.
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