olaisaac.com.br

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
olaisaac.com.br
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 17:22:45 UTC · ↺ Refresh

MX Hostnames

  • alt3.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • aspmx.l.google.com

MX Priorities

  • alt1.aspmx.l.google.com: 5
  • alt2.aspmx.l.google.com: 5
  • aspmx.l.google.com: 1
  • alt3.aspmx.l.google.com: 10
  • alt4.aspmx.l.google.com: 10

A / AAAA Records

  • 104.18.23.235
  • 104.18.22.235
  • 2606:4700::6812:17eb
  • 2606:4700::6812:16eb

Mail Server IPs

  • 108.177.123.26 ↩ lcscld-in-f26.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 192.178.218.26 ↩ yuiadtq-in-f26.1e100.net
  • 2607:f8b0:4004:c1f::1b ↩ pd-in-f27.1e100.net
  • 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
  • 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net

SOA Record

Raw SOA erin.ns.cloudflare.com dns.cloudflare.com 2398743317 10000 2400 604800 1800
Primary NS (mname)
erin.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398743317
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

erin.ns.cloudflare.com
noah.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:mg-spf.greenhouse.io include:sendgrid.net include:20646345.spf03.hubspotemail.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]

DKIM Selectors

✓ 3 found
google._domainkey
s1._domainkey
s2._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

8 records
  • apple-domain-verification=KHeCZqqMJqJCDfLE
  • facebook-domain-verification=8mh0qpk1k47htef0qm5reyzwd5yhq6
  • google-site-verification=DQeMRCU-Rz0jSPyJl5JPBjb7oKXNykkTDjuWU2zWwYs
  • google-site-verification=j_uNPrJl74S2ddR7M7q7pLcQU5KgAJB1s04VEK_2vCg
  • google-site-verification=tbI3A0yVTDFxRTopqy3qXZZ9Np9SFt0qbMvvlyc8tG0
  • linear-domain-verification=2ycfq5k5h9tf
  • miro-verification=d16a7ebc7099a500caa10862e30216aba32e5a5e
  • SPFv=spf1 include:_spf.google.com include:mg-spf.greenhouse.io include:sendgrid.net include:20646345.spf03.hubspotemail.net ~all
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for olaisaac.com.br

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits