concettolabs.com

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
concettolabs.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 11:11:41 UTC · ↺ Refresh

MX Hostnames

  • concettolabs-com.mail.protection.outlook.com

MX Priorities

  • concettolabs-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 18.164.116.54 ↩ server-18-164-116-54.jfk50.r.cloudfront.net
  • 18.164.116.112 ↩ server-18-164-116-112.jfk50.r.cloudfront.net
  • 18.164.116.42
  • 18.164.116.80

Mail Server IPs

  • 52.101.145.0 ↩ mail-pnzpr01cu00200.inbound.protection.outlook.com
  • 52.101.144.3 ↩ mail-ma0pr01cu01103.inbound.protection.outlook.com
  • 52.101.145.2 ↩ mail-pnypr01cu00202.inbound.protection.outlook.com
  • 52.101.144.0 ↩ mail-ma0pr01cu01000.inbound.protection.outlook.com
  • 2a01:111:f403:cc2c::1 ↩ mail-ma0pr01cu01101.inbound.protection.outlook.com
  • 2a01:111:f403:cc2d:: ↩ mail-pnzpr01cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:cc2d::1 ↩ mail-pnypr01cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:cc2c:: ↩ mail-ma0pr01cu01000.inbound.protection.outlook.com

SOA Record

Raw SOA ns-1335.awsdns-38.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1335.awsdns-38.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-323.awsdns-40.com
ns-985.awsdns-59.net
ns-1335.awsdns-38.org
ns-1580.awsdns-05.co.uk

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:_spf.google.com include:sender.zohoinvoice.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 3 found
google._domainkey
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
  • vo93vlingb2kulv5kt12n5lek4
  • zoho-verification=zb66263346.zmverify.zoho.com
  • SPFv=spf1 include:spf.protection.outlook.com include:_spf.google.com include:sender.zohoinvoice.com ~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 concettolabs.com

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

No credit card required
Get 1,000 Free Credits