Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
libus.com.br
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 16:54:17 UTC · ↺ Refresh
MX Hostnames
- aspmx2.googlemail.com
- aspmx3.googlemail.com
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- alt2.aspmx.l.google.com
MX Priorities
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 0
A / AAAA Records
- 172.67.71.65 (no PTR)
- 104.26.9.177 (no PTR)
- 104.26.8.177
- 2606:4700:20::681a:9b1
- 2606:4700:20::681a:8b1
- 2606:4700:20::ac43:4741
Mail Server IPs
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 192.178.155.26 ↩ yuiadrs-in-f26.1e100.net
- 2607:f8b0:4004:c08::1a ↩ bi-in-f26.1e100.net
SOA Record
Raw SOA
chuck.ns.cloudflare.com dns.cloudflare.com 2397118031 10000 2400 604800 1800
Primary NS (mname)
chuck.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397118031
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
chuck.ns.cloudflare.com
cruz.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:zcsend.net ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- google-site-verification=ZGzGxHNjBGpsPZSVngJxq3ZLdy2AU-9jQXZQPbq25s0
- SPFv=spf1 include:_spf.google.com include:zcsend.net ~all
- google-site-verification=AnsKbA1m5kbX8TpnMzKIgVD-2Gpo5LucpWrFTOe38tI
Full email verification for libus.com.br
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits