Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bluefield.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 06:05:19 UTC · ↺ Refresh
MX Hostnames
- bluefield-edu.mail.protection.outlook.com
MX Priorities
- bluefield-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.21 (no PTR)
- 141.193.213.20 (no PTR)
Mail Server IPs
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-09.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-09.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns1-09.azure-dns.com
ns2-09.azure-dns.net
ns3-09.azure-dns.org
ns4-09.azure-dns.info
SPF Record
✓ Strict (-all)
v=spf1 ip4:64.4.123.253 include:spf.protection.outlook.com include:relay.mailchannels.net include:sendgrid.net include:outboundmail.blackbaud.net include:cust-spf.exacttarget.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict 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- "apple-domain-verification=x3vMHWcJFlPGZi1S"
- "eZr/KOFAyl5dduUX0eW7vjKEYOesc77oH1sTucHhSIU="
- SPFv=spf1 ip4:64.4.123.253 include:spf.protection.outlook.com include:relay.mailchannels.net include:sendgrid.net include:outboundmail.blackbaud.net include:cust-spf.exacttarget.com -all
- "yR3hD+kjb0EIUZYvNOiIYh7AEPyjH4KGvGuV8lhrA7Y="
- "t=n; o=~; n=https://site.com/page/Privacy-Policy"
- adobe-idp-site-verification=ff5659d660975198689ad31cb771aa06520d697e8f3a5ff93e906f88a1c3cbab
- sending_domain924432=4e281315a4d73dbe1b5bbd75379e1cb898451c5c283209ed82b7b8b31d046c32
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