Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sespe.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 07:35:58 UTC · ↺ Refresh
MX Hostnames
- sespe-org.mail.protection.outlook.com
MX Priorities
- sespe-org.mail.protection.outlook.com: 10
A / AAAA Records
- 172.67.134.4 (no PTR)
- 104.21.25.105 (no PTR)
- 2606:4700:3033::ac43:8604
- 2606:4700:3031::6815:1969
Mail Server IPs
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
sara.ns.cloudflare.com dns.cloudflare.com 2398699027 10000 2400 604800 1800
Primary NS (mname)
sara.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398699027
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
sara.ns.cloudflare.com
sri.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
5 records- google-site-verification=kZD6akc7xYpw8uYIEMSxRcYvgbom40iMKgrWtURGSTk
- klaviyo-site-verification=VaVgRx
- SPFv=spf1 mx include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
- MS=ms39501728
- google-site-verification=B3NuyZfB1MppQ-J_HYTJOZ043X__kE3krSHL3QSeNVU
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 sespe.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits