Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dcu.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 13:00:56 UTC · ↺ Refresh
MX Hostnames
- dcu-org.mail.protection.outlook.com
MX Priorities
- dcu-org.mail.protection.outlook.com: 0
A / AAAA Records
- 104.17.63.212 (no PTR)
- 104.17.62.212 (no PTR)
- 104.17.60.212
- 104.17.64.212
- 104.17.61.212
- 2606:4700::6811:3fd4
- 2606:4700::6811:40d4
- 2606:4700::6811:3cd4
- 2606:4700::6811:3dd4
- 2606:4700::6811:3ed4
Mail Server IPs
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
edna.ns.cloudflare.com dns.cloudflare.com 2400054665 10000 2400 604800 1800
Primary NS (mname)
edna.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400054665
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
hans.ns.cloudflare.com
edna.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx:dcu.org include:spf.protection.outlook.com include:spf2.dcu.org include:spf3.dcu.org include:spf4.dcu.org ip4:158.228.200.70/32 ip4:158.228.129.79/32 ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
dkim._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
14 records- apple-domain-verification=PV2hWvVQdGCUnMEA
- atlassian-domain-verification=t9xjSjEH38c0nSH/unIiQBKccX3CvtTxCpqPf0cf0Uu2QnN2y2hFAkg7Q5/Qszcr
- docusign=67581a9e-1204-4dba-8a53-d7c47506e6de
- eld9FZniFOr+qN/yIAlZwrbDBIj5a5iRNyjh1NJ+ByHZ3I3RAgxvgiflZ1WkAr6vyAPGWO/VNQjsgXBujFbtpQ==
- google-site-verification=1ezMs2Fx278zFkDZ9ZNDHWU2FS4kzAcoDGOk5NtSAHQ
- google-site-verification=Mfp-N-W38SGcaY8Dd5-JcHm5eoxbIFKyOYxC7q_5FZY
- jamf-site-verification=-PfzQS_bUpkmvrAkGlb78w
- meltwater_sso_20250128_TRITON-26041
- miro-verification=f43867b8786b39e121c17facb68e71589f3bbc28
- ms-domain-verification=27c39774-0796-4d99-b5ca-888e81f174eb
- onetrust-domain-verification=a609380caaf64f2786d124f765610927
- twilio-domain-verification=1c902b48d4e39483fb3b863c09bdd7b4
- SPFv=spf1 mx:dcu.org include:spf.protection.outlook.com include:spf2.dcu.org include:spf3.dcu.org include:spf4.dcu.org ip4:158.228.200.70/32 ip4:158.228.129.79/32 ~all
- adobe-idp-site-verification=9e91d7c602861ac93a97dcf0caf710760fb5c16b413803d20c0205dd4235ea27
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