Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
usecardboard.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 03:53:43 UTC · ↺ Refresh
MX Hostnames
- smtp.google.com
MX Priorities
- smtp.google.com: 1
A / AAAA Records
- 216.198.79.1 (no PTR)
Mail Server IPs
- 142.251.179.27 ↩ pd-in-f27.1e100.net
- 142.251.179.26 ↩ pd-in-f26.1e100.net
- 172.253.139.26 ↩ yuiadsk-in-f26.1e100.net
- 192.178.218.27 ↩ yuiadtq-in-f27.1e100.net
- 192.178.218.26 ↩ yuiadtq-in-f26.1e100.net
- 2607:f8b0:4004:c27::1a ↩ yuiadsk-in-f26.1e100.net
- 2607:f8b0:4004:c25::1a ↩ yuiadtq-in-f26.1e100.net
- 2607:f8b0:4004:c25::1b ↩ yuiadtq-in-f27.1e100.net
- 2607:f8b0:4004:c1f::1a ↩ pd-in-f26.1e100.net
SOA Record
Raw SOA
elsa.ns.cloudflare.com dns.cloudflare.com 2397598920 10000 2400 604800 1800
Primary NS (mname)
elsa.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397598920
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
elsa.ns.cloudflare.com
neil.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:amazonses.com include:_spf.google.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; adkim=s; aspf=s; pct=100
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 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
2 records- SPFv=spf1 include:amazonses.com include:_spf.google.com ~all
- google-site-verification=JFAV4Oy7C8UqgcUnLTpEqBeUQ_cyumwxsw8ckaC3DMI
Full email verification for usecardboard.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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