Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rrcc.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 21:07:44 UTC · ↺ Refresh
MX Hostnames
- rrcc-edu.mail.protection.outlook.com
MX Priorities
- rrcc-edu.mail.protection.outlook.com: 10
A / AAAA Records
- 23.185.0.4 (no PTR)
- 2620:12a:8000::4 (no PTR)
- 2620:12a:8001::4
Mail Server IPs
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.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:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
kate.ns.cloudflare.com dns.cloudflare.com 2399937470 10000 2400 604800 1800
Primary NS (mname)
kate.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399937470
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
kate.ns.cloudflare.com
razvan.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:164.47.16.50 ip4:164.47.16.51 include:spf.protection.outlook.com include:cust-spf.cashnet.com include:a._spf.brightspace.com include:_spf.mailgun.org include:spf1.formassembly.com +include:outboundmail.blackbaud.net ~all ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 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
15 records- MS=ms34116096
- duo_sso_verification=BM9gUJX7qNEUeYHQA7nfUA6WICMHFRbqzzRcPPOzDdHjhRQHIzoAlyswwWfIJjuV
- knowbe4-site-verification=ae8aaaf3d0079a3f4370bf9e9de73693
- reftab-domain-verification=af2e3696e666fb2e162d1f691f163c02
- OPE0012973
- adobe-idp-site-verification=aec329f130616a320491a1f9b9caf62d27aaf90da1a12665e37de3fc1129715c
- _xa3lbo1tlfbzt187703cj72dwzi0jho
- SPFv=spf1 ip4:164.47.16.50 ip4:164.47.16.51 include:spf.protection.outlook.com include:cust-spf.cashnet.com include:a._spf.brightspace.com include:_spf.mailgun.org include:spf1.formassembly.com +include:outboundmail.blackbaud.net ~all ~all
- apple-domain-verification=84Ryj5EOi7UyvlUz
- jamf-site-verification=1fZNZpyfO2Vd3wUFgkJaLA
- atlassian-sending-domain-verification=7b07b408-02e1-427d-8635-309ae3164ca0
- MS=6DFC022745FB2A4F3F181B410A9CD581A6B29B36
- apple-domain-verification=6ftspZ5VbAyrbpB6
- atlassian-domain-verification=AZCCpLA9YE7j5NB7N8RcBdw9w5BYp/QzifdWsIRXVKfW7voNLEa7BN8AOEvvC14t
- ciscocidomainverification=167acf7257e2e186a5a2df6b08d47c20a60be89308f10a0f7f8d62f86eef5286
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