Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
msubillings.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 03:36:51 UTC · ↺ Refresh
MX Hostnames
- msubillings-edu.mail.protection.outlook.com
MX Priorities
- msubillings-edu.mail.protection.outlook.com: 10
A / AAAA Records
- 192.156.215.222 (no PTR)
- 2002:c09c:d794::c09c:d794 (no PTR)
Mail Server IPs
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
dns01 hostmaster 676 1200 600 1209600 600
Primary NS (mname)
dns01
Admin Email (rname)
hostmaster
Serial
676
Refresh
1200s
Retry
600s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
dns01.msubillings.edu
dns02.msubillings.edu
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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
6 records- google-site-verification=mtBIh4r96_bBgRgbOuFz02OPPrFPakpVUz9_IkijvW8
- SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
- docusign=3a53984a-f408-4113-aece-4ad9698963ba
- cisco-ci-domain-verification=3ea9ff96c710b76c40cb00bf5318b62c64d0209551751c03a0343f99917c567b
- docusign=1eed35e1-83cb-4dd3-8fc9-bd7b6b89b0f4
- webexdomainverification.1H1K8=3b0f34e4-32b8-4fb4-b4dd-db75be9af182
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