Domain Overview
DNS: ✓ 12h ago
Checker: ✓ 12h ago
coldbear.com.au
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-07-02 06:01:44 UTC · ↺ Refresh
MX Hostnames
- coldbear-com-au.mail.protection.outlook.com
MX Priorities
- coldbear-com-au.mail.protection.outlook.com: 0
A / AAAA Records
- 27.131.110.188 ↩ cp-kil-swh-011.micron21.com
Mail Server IPs
- 52.101.149.9 ↩ mail-sy2pr01cu00501.inbound.protection.outlook.com
- 52.101.149.2 ↩ mail-sy5pr01cu00902.inbound.protection.outlook.com
- 52.101.151.5 ↩ mail-meupr01cu00305.inbound.protection.outlook.com
- 52.101.149.0 ↩ mail-sy2pr01cu00300.inbound.protection.outlook.com
- 2a01:111:f403:cc31::3 ↩ mail-sy2pr01cu00503.inbound.protection.outlook.com
- 2a01:111:f403:cc31::1 ↩ mail-sy8pr01cu00101.inbound.protection.outlook.com
- 2a01:111:f403:cc31::2 ↩ mail-sy5pr01cu00902.inbound.protection.outlook.com
- 2a01:111:f403:cc33::1 ↩ mail-meupr01cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.fastdns.com.au cpanel-alerts.micron21.com 2026052801 3600 1800 1209600 86400
Primary NS (mname)
ns1.fastdns.com.au
Admin Email (rname)
cpanel-alerts@micron21.com
Serial
2026052801
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.fastdns.com.au
ns4.fastdns.com.au
ns3.fastdns.com.au
ns2.fastdns.com.au
SPF Record
✓ Strict (-all)
v=spf1 ip4:27.131.110.188 include:spf.micron21.com ip4:27.131.110.66 +a +mx include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:27.131.110.188 include:spf.micron21.com ip4:27.131.110.66 +a +mx include:spf.protection.outlook.com -all
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