Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
vanguard.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 19:01:41 UTC · ↺ Refresh
MX Hostnames
- vanguarduniv.mail.protection.outlook.com
MX Priorities
- vanguarduniv.mail.protection.outlook.com: 0
A / AAAA Records
- 104.17.71.73 (no PTR)
- 104.17.70.73 (no PTR)
- 104.17.69.73
- 104.17.67.73
- 104.17.68.73
Mail Server IPs
- 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-08.azure-dns.com helpdesk.vanguard.edu 2017030301 3600 600 1209600 3600
Primary NS (mname)
ns1-08.azure-dns.com
Admin Email (rname)
helpdesk@vanguard.edu
Serial
2017030301
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns3-08.azure-dns.org
ns4-08.azure-dns.info
ns1-08.azure-dns.com
ns2-08.azure-dns.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:mailproxy.collegenet.com ip4:74.122.104.0/22 include:sendgrid.net ip4:50.31.43.252 ip4:168.245.122.109 include:secure.giftlegacy.com include:mail.zendesk.com include:_spf.elasticemail.com include:_tuf-spf.touchnet.com ip4:198.187.196.100 -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected];fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
9 records- apple-domain-verification=mN0OSHmCQ3eoDUIB
- google-site-verification=euqVR7Qw86fnVs1VagR6bod9vI47cCw5rZzirdFio74
- _obnvnb0tr8c0yn4lenszr5pfvv2pokk
- TVIkezbh1bIM95++m0q8Y2lAY4yG1/5R4BpvGB8WGuyysoQdU8z/00OzE67Pagp2QbmKN0cxB5Izm0MMAa1jSQ==
- MS=ms18569586
- SPFv=spf1 include:spf.protection.outlook.com include:mailproxy.collegenet.com ip4:74.122.104.0/22 include:sendgrid.net ip4:50.31.43.252 ip4:168.245.122.109 include:secure.giftlegacy.com include:mail.zendesk.com include:_spf.elasticemail.com include:_tuf-spf.touchnet.com ip4:198.187.196.100 -all
- useast.radiusbycampusmgmt.com
- 165.193.85.0/24
- DKIMv=DKIM1; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCz7MUUL9CSo6INlUqaNa+3iny9 K90/s71VMURgnHCtdxTyBJI7RW03rJWLs1gfB6K8V7Lr5og6a5kDvEgKfgc5RD+W /PNOwKE7kR23D2Re93bHjeY/DKCbRUCOWNQAUe0mE2xsCQr1W2Nrsks2JzWY1Y5o Yva/0cZqIKsB6kw2nwIDAQAB
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