Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dublinblue.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 07:33:34 UTC · ↺ Refresh
MX Hostnames
- smtp.google.com
MX Priorities
- smtp.google.com: 1
A / AAAA Records
- 104.131.170.66 ↩ 1418387.cloudwaysapps.com
Mail Server IPs
- 172.253.62.27 ↩ bc-in-f27.1e100.net
- 142.251.179.26 ↩ pd-in-f26.1e100.net
- 142.251.179.27 ↩ pd-in-f27.1e100.net
- 64.233.180.26 ↩ pe-in-f26.1e100.net
- 64.233.180.27 ↩ on-in-f27.1e100.net
- 2607:f8b0:4004:c21::1b ↩ pe-in-f27.1e100.net
- 2607:f8b0:4004:c1f::1a ↩ pd-in-f26.1e100.net
- 2607:f8b0:4004:c1f::1b ↩ pd-in-f27.1e100.net
- 2607:f8b0:4004:c21::1a ↩ pe-in-f26.1e100.net
SOA Record
Raw SOA
dns1.registrar-servers.com hostmaster.registrar-servers.com 1772849537 43200 3600 604800 3601
Primary NS (mname)
dns1.registrar-servers.com
Admin Email (rname)
hostmaster@registrar-servers.com
Serial
1772849537
Refresh
43200s
Retry
3600s
Expire
604800s
Minimum TTL
3601s
Nameservers (NS)
dns2.registrar-servers.com
dns1.registrar-servers.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:_spf.mlsend.com include:_spf.google.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject; sp=reject; pct=100; ri=86400; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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- google-site-verification=jTvLoaaC8_GXnsYjwVV-pA_km9FSTkUD5j_wDDmfcS0
- mailerlite-domain-verification=f5b6b59a7b6ab2269412f5c0b3978fd24286d2c2
- SPFv=spf1 a mx include:_spf.mlsend.com include:_spf.google.com ~all
Full email verification for dublinblue.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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