Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
c3group.com.au
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 19:28:38 UTC · ↺ Refresh
MX Hostnames
- mx04.hornetsecurity.com
- mx03.hornetsecurity.com
- mx02.hornetsecurity.com
- mx01.hornetsecurity.com
MX Priorities
- mx02.hornetsecurity.com: 20
- mx03.hornetsecurity.com: 30
- mx01.hornetsecurity.com: 10
- mx04.hornetsecurity.com: 40
A / AAAA Records
- 103.19.61.169 ↩ c3h-sy3-web03.c3hosting.com.au
Mail Server IPs
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
SOA Record
Raw SOA
ns03.c3net.com.au msp.c3group.com.au 2026032101 3600 1800 1209600 86400
Primary NS (mname)
ns03.c3net.com.au
Admin Email (rname)
msp@c3group.com.au
Serial
2026032101
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns03.c3net.com.au
ns04.c3net.com.au
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx ip4:103.19.61.162 ip4:103.19.61.169 ip4:103.19.60.0/22 ip4:52.62.125.178 ip4:220.233.186.176 include:spf.protection.outlook.com include:spf.hornetsecurity.com include:spf.exclaimer.net include:spf.synergywholesale.com include:sendgrid.net include:spf.mtasv.net include:_spf.createsend.com ~all
📊 DNS lookups: 9/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; sp=none; pct=100; adkim=r; aspf=r; fo=1; ri=86400
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none
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- SPFv=spf1 a mx ip4:103.19.61.162 ip4:103.19.61.169 ip4:103.19.60.0/22 ip4:52.62.125.178 ip4:220.233.186.176 include:spf.protection.outlook.com include:spf.hornetsecurity.com include:spf.exclaimer.net include:spf.synergywholesale.com include:sendgrid.net include:spf.mtasv.net include:_spf.createsend.com ~all
- atlassian-domain-verification=fGWB4rC6HZEU4hWMSC/k3vEA0ResNIaKq95YoksHSulWIBbHVKV4OVOm2NQiVrbH
- yandex-verification: 9f49a6b93050da26
- google-site-verification=h1G2qUWlXMSjgBWbol6JEWS3MJnug-NzTnci_dB50kM
- google-site-verification=xdTqDJ6tv5NpM72NyMt1cJdwGxYTL41QsNxGdtSD3vU
- apple-domain-verification=sjefGCLjjsJ3znBP
- MS=ms57452207
- twilio-domain-verification=2f246430b1705d9a9543686fef8b2c95
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