Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
3st.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 01:23:58 UTC · ↺ Refresh
MX Hostnames
- d508458.a.ess.au.barracudanetworks.com
- alt3.aspmx.l.google.com
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- alt2.aspmx.l.google.com
- alt4.aspmx.l.google.com
- d508458.b.ess.au.barracudanetworks.com
MX Priorities
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- d508458.a.ess.au.barracudanetworks.com: 99
- d508458.b.ess.au.barracudanetworks.com: 99
- aspmx.l.google.com: 1
A / AAAA Records
- 108.139.47.18
- 108.139.47.31
- 108.139.47.106
- 108.139.47.88
Mail Server IPs
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 3.24.133.211 ↩ mail.ess.au.barracuda.com
- 3.24.133.209 ↩ mail.ess.au.barracuda.com
- 3.24.133.210
SOA Record
Raw SOA
ns-607.awsdns-11.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-607.awsdns-11.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-213.awsdns-26.com
ns-607.awsdns-11.net
ns-1452.awsdns-53.org
ns-1717.awsdns-22.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:spf.ess.au.barracudanetworks.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:_spf.google.com include:spf.ess.au.barracudanetworks.com ~all
- google-site-verification=xN3VVcoC-ESYLOqoMS7qkTqjRcSNinPOkIp8PE2M5oE
- openai-domain-verification=dv-jZmQoUOwNHSR0qMLbvgjZCvI
Full email verification for 3st.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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