Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
trcb.com.au
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 23:46:35 UTC · ↺ Refresh
MX Hostnames
- trcb-com-au.mail.protection.outlook.com
MX Priorities
- trcb-com-au.mail.protection.outlook.com: 0
A / AAAA Records
- 198.49.23.145 (no PTR)
- 198.185.159.144 (no PTR)
- 198.49.23.144
- 198.185.159.145
Mail Server IPs
- 52.101.149.0 ↩ mail-sy2pr01cu00300.inbound.protection.outlook.com
- 52.101.149.1 ↩ mail-sy8pr01cu00101.inbound.protection.outlook.com
- 52.101.151.0 ↩ mail-meupr01cu00200.inbound.protection.outlook.com
- 52.101.149.2 ↩ mail-sy5pr01cu00902.inbound.protection.outlook.com
- 2a01:111:f403:cc33:: ↩ mail-meupr01cu00200.inbound.protection.outlook.com
- 2a01:111:f403:cc33::1 ↩ mail-meupr01cu00301.inbound.protection.outlook.com
- 2a01:111:f403:cc31:: ↩ mail-sy2pr01cu00300.inbound.protection.outlook.com
- 2a01:111:f403:cc31::2 ↩ mail-sy5pr01cu00902.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.nameserver.net.au hostmaster.trcb.com.au 2026031201 10800 3600 604800 3600
Primary NS (mname)
ns1.nameserver.net.au
Admin Email (rname)
hostmaster@trcb.com.au
Serial
2026031201
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns1.nameserver.net.au
ns2.nameserver.net.au
ns3.nameserver.net.au
SPF Record
✓ Strict (-all)
v=spf1 ip4:202.74.162.53 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:mandrillapp.com include:mcsv.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=reject; ri=84600;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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
1 record- SPFv=spf1 ip4:202.74.162.53 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:mandrillapp.com include:mcsv.net -all
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