student.ri.edu.sg

Valid Email Server
Domain Lookup › student.ri.edu.sg

Domain Overview

DNS: ✓ 21h ago Checker: ✓ 21h ago
student.ri.edu.sg
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-20 17:06:48 UTC · ↺ Refresh

MX Hostnames

  • student-ri-edu-sg.mail.protection.outlook.com

MX Priorities

  • student-ri-edu-sg.mail.protection.outlook.com: 0

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
  • 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
  • 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:cc1f::4 ↩ mail-os8pr02cu00104.inbound.protection.outlook.com
  • 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:cc1a::8 ↩ mail-tydpr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ridns.ri.edu.sg hostmaster.raffles.ri.edu.sg 21 900 600 3600 1800
Primary NS (mname)
ridns.ri.edu.sg
Admin Email (rname)
hostmaster@raffles.ri.edu.sg
Serial
21
Refresh
900s
Retry
600s
Expire
3600s
Minimum TTL
1800s

Nameservers (NS)

ridns.ri.edu.sg

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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

3 records
  • k32UZhmBbU+BjN/jd8bu/80sVfYjdQ6YJkcasqrRtJY0shEziQHoHmkPsmGi7RUvuEXQYwu1l6TYi8iW794y6g==
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • apple-domain-verification=0xDnamlVpoq1zkkv
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 student.ri.edu.sg

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

No credit card required
Get 1,000 Free Credits