Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
crust.com.au
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 21:02:19 UTC · ↺ Refresh
MX Hostnames
- mx4.netregistry.net
- mx.netregistry.net
MX Priorities
- mx4.netregistry.net: 10
- mx.netregistry.net: 20
A / AAAA Records
- 54.153.157.105 ↩ ec2-54-153-157-105.ap-southeast-2.compute.amazonaws.com
Mail Server IPs
- 198.38.93.103 ↩ smtp-proxy-01.whgi.net
SOA Record
Raw SOA
ns-1082.awsdns-07.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1082.awsdns-07.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-2019.awsdns-60.co.uk
ns-844.awsdns-41.net
ns-1082.awsdns-07.org
ns-147.awsdns-18.com
SPF Record
✓ Strict (-all)
v=spf1 include:_mg.rfg.com.au include:_fpmail.crust.com.au include:spf.netregistry.net include:mail.zendesk.com -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]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
s1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=qQtBYWNvs4ARbiE0b7CA58gsC82kh34Ry6lPTvD1KAM
- SPFv=spf1 include:_mg.rfg.com.au include:_fpmail.crust.com.au include:spf.netregistry.net include:mail.zendesk.com -all
Full email verification for crust.com.au
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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