Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ub.edu.bs
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 05:08:58 UTC · ↺ Refresh
MX Hostnames
- ub-edu-bs.mail.protection.outlook.com
MX Priorities
- ub-edu-bs.mail.protection.outlook.com: 10
A / AAAA Records
- 108.60.228.89 (no PTR)
- 65.75.64.75 ↩ iqweb.cob.edu.bs
Mail Server IPs
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
SOA Record
Raw SOA
dns2.ub.edu.bs ubadm.ub.edu.bs 2026020901 3600 3600 604800 3600
Primary NS (mname)
dns2.ub.edu.bs
Admin Email (rname)
ubadm@ub.edu.bs
Serial
2026020901
Refresh
3600s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns2.ub.edu.bs
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:198.187.196.0/24 ip4:198.187.196.100 ip4:198.187.196.130 ip4:24.51.122.36 ip4:65.75.64.68 ip4:108.60.228.79 ip4:108.60.228.77 ip4:65.75.64.72 include:spf.protection.outlook.com include:amazonses.com include:spf.elluciancloud.com a:smtphosts.uits.iu.edu include:_tuf-spf.touchnet.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
2 records- WchrCGfCE4fLb6XhWey/6ZIxUZbwPyF+cskolGPgLjZoeHVOBmGrDVp1vQut+C1ZpLLPCREuXNzLZmfPcNlgYw==
- SPFv=spf1 ip4:198.187.196.0/24 ip4:198.187.196.100 ip4:198.187.196.130 ip4:24.51.122.36 ip4:65.75.64.68 ip4:108.60.228.79 ip4:108.60.228.77 ip4:65.75.64.72 include:spf.protection.outlook.com include:amazonses.com include:spf.elluciancloud.com a:smtphosts.uits.iu.edu include:_tuf-spf.touchnet.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
See demo & docs
Deep verification
Full email verification for ub.edu.bs
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits