contraktor.com.br

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
contraktor.com.br
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-20 13:49:03 UTC · ↺ Refresh

MX Hostnames

  • alt3.aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • mx.sendgrid.net
  • aspmx.l.google.com
  • alt2.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
  • mx.sendgrid.net: 10

A / AAAA Records

  • 31.43.160.6

Mail Server IPs

  • 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
  • 172.253.63.26 ↩ bi-in-f26.1e100.net
  • 2607:f8b0:4004:c08::1a ↩ bi-in-f26.1e100.net
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.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-f26.1e100.net

SOA Record

Raw SOA malcolm.ns.cloudflare.com dns.cloudflare.com 2399433162 10000 2400 604800 1800
Primary NS (mname)
malcolm.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399433162
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

phoenix.ns.cloudflare.com
malcolm.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:servers.mcsv.net ip4:149.72.217.198 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

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

DKIM Selectors

✓ 4 found
google._domainkey
k1._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

3 records
  • google-site-verification=E9l_DGx1V8ybJeOAeNsyJUD1UypUa_FTEaumQLdBFis
  • google-site-verification=UWVscY9Nixms5DroOr9gC5r0_AguKYeZzF7SrMeoX14
  • SPFv=spf1 include:_spf.google.com include:servers.mcsv.net ip4:149.72.217.198 ~all
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