Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
3layer.com.br
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 16:53:36 UTC · ↺ Refresh
MX Hostnames
- alt3.aspmx.l.google.com
- aspmx.l.google.com
- alt2.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
MX Priorities
- alt3.aspmx.l.google.com: 15
- alt4.aspmx.l.google.com: 15
- aspmx.l.google.com: 5
- alt1.aspmx.l.google.com: 10
- alt2.aspmx.l.google.com: 10
A / AAAA Records
- 177.70.4.62
Mail Server IPs
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 192.178.155.26 ↩ yuiadrs-in-f26.1e100.net
- 2607:f8b0:4004:c08::1a ↩ bi-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
SOA Record
Raw SOA
ns2.no-ip.com hostmaster.no-ip.com 2014063005 10800 1800 604800 1800
Primary NS (mname)
ns2.no-ip.com
Admin Email (rname)
hostmaster@no-ip.com
Serial
2014063005
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns5.no-ip.com
ns4.no-ip.com
ns1.no-ip.com
ns2.no-ip.com
ns3.no-ip.com
SPF Record
✗ Invalid
v=spf1 include:zohomail.com a mx ptr include:_spf.google.com include:stspg-customer.com include:md02.com include:bounce.zift123.com include:spf.protection.outlook.com include:zcsend.net include:one.zoho.com include:zcsend.net include:spf.zoho.com include:sender.zohobooks.com include:transmail.net include:zeptomail.net ~all
📊 DNS lookups: 16/10
— over limit!
⚠ Too many DNS lookups (16/10) — SPF will fail validation. Reduce include: statements.
DMARC Record
~ Quarantine
v=DMARC1; rua=mailto:[email protected]; p=quarantine; pct=90; sp=none
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
⚠ Policy applies to 90% of failing messages only
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
7 records- zoho-verification=zb03323909.zmverify.zoho.com
- openai-domain-verification=dv-fmQMQInpWlYVyqSn0fp4u5Hs
- atlassian-domain-verification=3yUuAIDNAwUYpDS2Ne7SUUkZs87wukHCJ5XWrjS3++uCoiR+oOfKlK1s3t+Ayi3v
- SPFv=spf1 include:zohomail.com a mx ptr include:_spf.google.com include:stspg-customer.com include:md02.com include:bounce.zift123.com include:spf.protection.outlook.com include:zcsend.net include:one.zoho.com include:zcsend.net include:spf.zoho.com include:sender.zohobooks.com include:transmail.net include:zeptomail.net ~all
- MS=ms62527297;3600
- d728p2rejln2c0b0n24l2l10t3
- DirectFedAuthUrl=https://3layer.com.br/crowd/console/secure/saml/sso.action
Full email verification for 3layer.com.br
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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