Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
biotron.com.au
Yes
✓ Yes
Symantec
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 08:37:16 UTC · ↺ Refresh
MX Hostnames
- cluster9a.us.messagelabs.com
- cluster8.us.messagelabs.com
- cluster9.us.messagelabs.com
- cluster8a.us.messagelabs.com
MX Priorities
- cluster9.us.messagelabs.com: 30
- cluster9a.us.messagelabs.com: 40
- cluster8.us.messagelabs.com: 10
- cluster8a.us.messagelabs.com: 20
A / AAAA Records
- 172.66.41.8
- 172.66.42.248
- 2606:4700:3108::ac42:2af8
- 2606:4700:3108::ac42:2908
Mail Server IPs
- 67.219.246.219 ↩ mail905.messagelabs.com
- 67.219.250.219 ↩ mail952.messagelabs.com
- 67.219.250.220 ↩ mail946.messagelabs.com
- 67.219.247.207 ↩ mail932.messagelabs.com
- 67.219.246.213 ↩ mail912.messagelabs.com
- 67.219.247.111 ↩ mail924.messagelabs.com
- 34.75.172.113 ↩ 113.172.75.34.bc.googleusercontent.com
- 67.219.247.197 ↩ mail929.messagelabs.com
- 67.219.246.218 ↩ mail904.messagelabs.com
- 67.219.250.214 ↩ mail945.messagelabs.com
SOA Record
Raw SOA
aria.ns.cloudflare.com dns.cloudflare.com 2399118156 10000 2400 604800 1800
Primary NS (mname)
aria.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399118156
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
charles.ns.cloudflare.com
aria.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.messagelabs.com include:spf.protection.outlook.com include:spf-au.emailsignatures365.com include:servers.mcsv.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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- MS=ms36399429
- SPFv=spf1 include:spf.messagelabs.com include:spf.protection.outlook.com include:spf-au.emailsignatures365.com include:servers.mcsv.net -all
Full email verification for biotron.com.au
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