Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
winona.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 22:44:20 UTC · ↺ Refresh
MX Hostnames
- winona-edu.mail.protection.outlook.com
MX Priorities
- winona-edu.mail.protection.outlook.com: 10
A / AAAA Records
- 23.185.0.4 (no PTR)
- 2620:12a:8001::4 (no PTR)
- 2620:12a:8000::4
Mail Server IPs
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-03.azure-dns.com domainmaster.winona.edu 200216543 3600 3600 1209600 28800
Primary NS (mname)
ns1-03.azure-dns.com
Admin Email (rname)
domainmaster@winona.edu
Serial
200216543
Refresh
3600s
Retry
3600s
Expire
1209600s
Minimum TTL
28800s
Nameservers (NS)
ns2-03.azure-dns.net
ns3-03.azure-dns.org
ns4-03.azure-dns.info
ns1-03.azure-dns.com
SPF Record
✓ Strict (-all)
v=spf1 exists:%{i}._spf.winona.edu exists:%{ir}.%{v}.arpa._spf.winona.edu include:spf.protection.outlook.com include:a._spf.brightspace.com include:spf-na.exlibrisgroup.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; adkim=r; aspf=r
✓ Reject — strongest protection
📋 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
10 records- asv=02dbf6ccf3d314adf5b462cea525df75
- hibp-verify=dweb_w5fcutwgu39xhcws9zl9miiy
- SPFv=spf1 exists:%{i}._spf.winona.edu exists:%{ir}.%{v}.arpa._spf.winona.edu include:spf.protection.outlook.com include:a._spf.brightspace.com include:spf-na.exlibrisgroup.com -all
- sending_domain982172=4e26801ba39b185455dff29ba5630fb5af4d1e793600aa2849f92b87cb254c77
- e2ma-verification=8q3bb
- e2ma-verification=cn5eb
- e2ma-verification=wu5eb
- e2ma-verification=quhgb
- e2ma-verification=6fqbb
- google-site-verification=feUQzlDoTijso_M28BGumdLj8k_CT14KrM41wvmjpv0
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 winona.edu
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits