Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nlconcrete.ca
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 11:14:06 UTC · ↺ Refresh
MX Hostnames
- nlconcrete-ca.mail.protection.outlook.com
MX Priorities
- nlconcrete-ca.mail.protection.outlook.com: 0
A / AAAA Records
- 74.208.236.69 ↩ 74-208-236-69.elastic-ssl.ui-r.com
- 2607:f1c0:100f:f000::2d8 ↩ 2607-f1c0-100f-f000-0000-0000-0000-02d8.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1029.ui-dns.com hostmaster.1und1.com 2017060131 28800 7200 604800 600
Primary NS (mname)
ns1029.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060131
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1024.ui-dns.de
ns1055.ui-dns.org
ns1081.ui-dns.biz
ns1029.ui-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf-us.ionos.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:_spf-us.ionos.com include:spf.protection.outlook.com ~all
- google-site-verification=qdc8Y89HrhRTrO-FSVTA5x_9djUddCvolFucj9CXsjk
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 nlconcrete.ca
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits