Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
redfinplumbing.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 16:55:00 UTC · ↺ Refresh
MX Hostnames
- redfinplumbing-com.mail.protection.outlook.com
MX Priorities
- redfinplumbing-com.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
SOA Record
Raw SOA
dana.ns.cloudflare.com dns.cloudflare.com 2397852644 10000 2400 604800 1800
Primary NS (mname)
dana.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397852644
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
lakas.ns.cloudflare.com
dana.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- NETORGFT6253359.onmicrosoft.com
- f6jhmpv5defvurhpag3r49sakm
- google-site-verification=hzi-R4b64Ep97w9PLpDhtW03wzdO6eIVVT-g40mi0-U
- google-site-verification=oo9Aw1FTlCJURPpgR63G6YQ1AFx0mDrAxjOH69mFmmc
- SPFv=spf1 include:spf.protection.outlook.com -all
- v=verifydomain MS=7587830
- MS=ms84696357
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 redfinplumbing.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits