Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cskills.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 19:52:36 UTC · ↺ Refresh
MX Hostnames
- cskills-org.mail.protection.outlook.com
MX Priorities
- cskills-org.mail.protection.outlook.com: 10
A / AAAA Records
- 104.17.242.190 (no PTR)
- 104.17.243.190 (no PTR)
- 2606:4700::6811:f3be
- 2606:4700::6811:f2be
Mail Server IPs
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
nina.ns.cloudflare.com dns.cloudflare.com 2399252197 10000 2400 604800 1800
Primary NS (mname)
nina.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399252197
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
nina.ns.cloudflare.com
peyton.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:cmail1.com include:spf.protection.outlook.com ip4:80.6.91.150 ?all
📊 DNS lookups: 4/10
? Neutral (?all) — no 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
6 records- _p79i5tdtr0w7hma7xjxieusw7o198xw
- p2wn5zygnv0wflfd5kr5z82gv74k7z08
- rLDITYwAba0rBhJVCqiBcVUSqzMTQWFJm4aLOws4NgKtUE0x12D6oQyWySI1vocBZ4LPPNlL7aZaa/2+IOSQjg==
- SPFv=spf1 a mx include:cmail1.com include:spf.protection.outlook.com ip4:80.6.91.150 ?all
- 4bxk8550c088tflq4hzwk28rklxnm8sq
- MS=ms32235176
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 cskills.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits