Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
quatrrobss.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 15:23:10 UTC · ↺ Refresh
MX Hostnames
- d280672a.ess.barracudanetworks.com
- quatrrobss-com.mail.protection.outlook.com
- d280672b.ess.barracudanetworks.com
MX Priorities
- d280672b.ess.barracudanetworks.com: 20
- quatrrobss-com.mail.protection.outlook.com: 65535
- d280672a.ess.barracudanetworks.com: 10
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 52.101.144.0 ↩ mail-ma0pr01cu01000.inbound.protection.outlook.com
- 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
SOA Record
Raw SOA
henrik.ns.cloudflare.com dns.cloudflare.com 2399573881 10000 2400 604800 1800
Primary NS (mname)
henrik.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399573881
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
henrik.ns.cloudflare.com
yolanda.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:20.204.125.255 ip4:103.47.205.129 ip4:136.143.188.247 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:spf.zohomail360.com include:mail.zendesk.com include:transmail.net include:24432642.spf04.hubspotemail.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine; fo=1; pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- 045C8F5650
- 0ed1fe018a037c723ed42a462bacfe2c8905be31ba
- MS=ms96212432
- duo_sso_verification=VgGoHZwPyTYo6NY7d1eEWEMQi9xY4cHElAwdplUlMik7jO38qY1NecIquVTBPAyU
- google-site-verification=o4DW5LuYZx7cd-hswLWl116oZvTi6escY02woJ0hUa0
- ql6kcqu3tmdbvun0fug2uu4u6l
- SPFv=spf1 ip4:20.204.125.255 ip4:103.47.205.129 ip4:136.143.188.247 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:spf.zohomail360.com include:mail.zendesk.com include:transmail.net include:24432642.spf04.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 quatrrobss.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits