Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
haydon.ie
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 02:03:18 UTC · ↺ Refresh
MX Hostnames
- haydon-ie.mail.protection.outlook.com
MX Priorities
- haydon-ie.mail.protection.outlook.com: 0
A / AAAA Records
- 192.0.78.25 (no PTR)
- 192.0.78.24 (no PTR)
Mail Server IPs
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.blacknight.com hostmaster.blacknight.com 1275947692 14400 7200 2419200 3600
Primary NS (mname)
ns1.blacknight.com
Admin Email (rname)
hostmaster@blacknight.com
Serial
1275947692
Refresh
14400s
Retry
7200s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
ns4.blacknight.com
ns1.blacknight.com
ns3.blacknight.com
ns2.blacknight.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:78.137.157.230 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=none; fo=1; pct=100;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
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
2 records- SPFv=spf1 ip4:78.137.157.230 include:spf.protection.outlook.com -all
- MS=ms38628773
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