Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
subr.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 01:10:17 UTC · ↺ Refresh
MX Hostnames
- mail.messaging.microsoft.com
- mail.messaging.microsoft.com
- subr-edu.mail.protection.outlook.com
MX Priorities
- mail.messaging.microsoft.com: 5
- subr-edu.mail.protection.outlook.com: 0
- mail.messaging.microsoft.com: 15
A / AAAA Records
- 23.20.96.111 ↩ ec2-23-20-96-111.compute-1.amazonaws.com
Mail Server IPs
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
SOA Record
Raw SOA
sudns.subr.edu root.subr.edu 19991349 3600 600 604800 3600
Primary NS (mname)
sudns.subr.edu
Admin Email (rname)
root@subr.edu
Serial
19991349
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
sudns.subr.edu
campusdns.subr.edu
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:192.195.100.0/24 include:spf.protection.outlook.com include:relay.sus.edu include:verifymyfafsa.com include:clmail01.covalentemail.com include:spf.constantcontact.com ip4:184.106.158.29 ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; 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: 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
7 records- 9MymfeagtawJS5nOMno6RdkFc3MdO/A3ObJ8gwFh514=
- tLYS1QOR/uyT4kvatFT0jWFjvYaOsS+nEoJlpPWoNtMaYLpITaCwZiZo6y/BuUIwQFpvsA++FMFRPTSffIqQMw==
- cisco-ci-domain-verification=27d8b2b6ad0111700cbca5bce6bbb6e6026c0ecf80be5b563843f2ac5cf21576
- MS=ms65678045
- gfu57hnfalijt9p1lg0qmg74bm
- apple-domain-verification=84tcNwJwAIWm8ndv
- SPFv=spf1 ip4:192.195.100.0/24 include:spf.protection.outlook.com include:relay.sus.edu include:verifymyfafsa.com include:clmail01.covalentemail.com include:spf.constantcontact.com ip4:184.106.158.29 ~all
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