sms.edu

Valid Email Server
Domain Lookup › sms.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
sms.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 06:30:47 UTC · ↺ Refresh

MX Hostnames

  • sms-edu.mail.protection.outlook.com
  • d286084a.ess.barracudanetworks.com
  • d286084b.ess.barracudanetworks.com

MX Priorities

  • sms-edu.mail.protection.outlook.com: 5
  • d286084a.ess.barracudanetworks.com: 0
  • d286084b.ess.barracudanetworks.com: 0

A / AAAA Records

  • 104.17.67.73

Mail Server IPs

  • 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
  • 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
  • 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
  • 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
  • 209.222.82.253 ↩ mail.ess.barracuda.com
  • 209.222.82.255 ↩ mail.ess.barracuda.com
  • 209.222.82.252

SOA Record

Raw SOA ns41.domaincontrol.com dns.jomax.net 2026031600 28800 7200 604800 600
Primary NS (mname)
ns41.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026031600
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns42.domaincontrol.com
ns41.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:192.254.121.248 ip4:23.21.109.197 ip4:23.21.109.212 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:48.105.0.0/16 include:_phishspf.knowbe4.com include:_spf.saashr.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 3 found
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

10 records
  • aj26db948p6ge3he02vb4j3v42
  • prowly-verification=9cd2b452e09d293503f6d84bd378bd51b4c31004c2c0775dacddb199b69e36a9
  • bg51s7tqbr9997hrva9qatj8kn
  • 77jqc3fmobrpjrrrsa8441n4pb
  • e7cruagrvuck8jpie7vvgqql58
  • q2205cv49g9g3krsjv9laia0ub
  • apple-domain-verification=DPVzYrjxMgHfp4pA
  • google-site-verification=CVLiO_ArHYd6OHh4kMo2AKXvcIxDkaxL1D9Xu6dCxTY
  • keld8ada76ol9be978bo4nk3vp
  • SPFv=spf1 include:spf.protection.outlook.com ip4:192.254.121.248 ip4:23.21.109.197 ip4:23.21.109.212 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:48.105.0.0/16 include:_phishspf.knowbe4.com include:_spf.saashr.com -all
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