Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
nucalgon.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-19 06:04:11 UTC · ↺ Refresh
MX Hostnames
- nucalgon-com.mail.protection.outlook.com
MX Priorities
- nucalgon-com.mail.protection.outlook.com: 1
A / AAAA Records
- 104.26.0.2 (no PTR)
- 172.67.70.165 (no PTR)
- 104.26.1.2
- 2606:4700:20::ac43:46a5
- 2606:4700:20::681a:102
- 2606:4700:20::681a:2
Mail Server IPs
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
SOA Record
Raw SOA
amalia.ns.cloudflare.com dns.cloudflare.com 2403992049 10000 2400 604800 1800
Primary NS (mname)
amalia.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2403992049
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
nikon.ns.cloudflare.com
amalia.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:12.170.194.34 include:spf.tmes.trendmicro.com include:spf.protection.outlook.com include:spf.constantcontact.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; pct=100; fo=1; ri=86400; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
8 records- 5lzvy4dg7jwzd0hjrmqpw1bk16558150
- 76v6asgg81ffrunol1lndqdklg
- MS=ms54027631
- apple-domain-verification=4hiLYGA6j5rSm97D
- cursor-domain-verification-3gtrxy=Sw2mDW37KqOkMyMFr2pSfDqzu
- tmes=af6d14b2db39064528e9b96ce3ce417a
- ugkarb934mhcdv5btrij2cei5k
- SPFv=spf1 ip4:12.170.194.34 include:spf.tmes.trendmicro.com include:spf.protection.outlook.com include:spf.constantcontact.com -all
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