courtesyelectric.com

Valid Email Server
Domain Lookup › courtesyelectric.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
courtesyelectric.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-10-30 07:47:33 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • courtesyelectric-com.mail.eo.outlook.com

MX Priorities

  • courtesyelectric-com.mail.eo.outlook.com: 10

A / AAAA Records

  • 216.150.1.1 (no PTR)

Mail Server IPs

  • 52.101.8.35 ↩ mail-ds2pr05cu00103.inbound.protection.outlook.com
  • 52.101.60.65 ↩ mail-bn3pr02cu00101.inbound.protection.outlook.com
  • 52.101.40.3 ↩ mail-cy4pr03cu00203.inbound.protection.outlook.com
  • 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:c946::1c ↩ mail-ch1pr02cu00104.inbound.protection.outlook.com
  • 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:f90a::8 ↩ mail-bn0pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f908::3 ↩ mail-bn3pr02cu00103.inbound.protection.outlook.com

SOA Record

Raw SOA ns25.worldnic.com namehost.worldnic.com 126100214 10800 3600 604800 3600
Primary NS (mname)
ns25.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126100214
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns25.worldnic.com
ns26.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:54.164.71.157 ip4:54.88.4.22 include:outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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

2 records
  • MS=ms37840210
  • SPFv=spf1 ip4:54.164.71.157 ip4:54.88.4.22 include:outlook.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 · Customize →
See demo & docs
Deep verification
Full email verification for courtesyelectric.com

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

No credit card required
Get 1,000 Free Credits