Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rivermarkcu.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 05:21:21 UTC · ↺ Refresh
MX Hostnames
- rivermarkcu-org.mail.protection.outlook.com
MX Priorities
- rivermarkcu-org.mail.protection.outlook.com: 0
A / AAAA Records
- 199.60.103.184 (no PTR)
- 199.60.103.84 (no PTR)
Mail Server IPs
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-05.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-05.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4-05.azure-dns.info
ns1-05.azure-dns.com
ns2-05.azure-dns.net
ns3-05.azure-dns.org
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.rivermarkcu_org._d.easydmarc.pro include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
16 records- SPFv=spf1 include:_spf.rivermarkcu_org._d.easydmarc.pro include:spf.protection.outlook.com -all
- duo_sso_verification=VfQ1qco4qbLZ9JxrMxWTAywhhxiiTfrMtAIpDRbxutqydWb136P3fD18iU4DMo98
- ecostruxure-it-verification=3e521838-7f0a-49d2-8f69-adc1ddc623f5
- tJnFve9/YuXFN2wgYAF3rKVSu59+PZaC6mZey1WcW+6Zd06dZ62IDy+gSrce8Y6wbfry2zqhz/kknn3oeD4cMA==
- MS=ms30873130
- MS=ms880447fa
- MS=ms45404761
- MS=ms85771821
- atlassian-domain-verification=WRxYdM+NxbIGMRDdtXxbeXzqV7d0NQGGMeHQ7TnlsuKRghRzourqDizEIs/CKpWO
- YP9u97HDHz5DeuJMMxPqJQ==
- apple-domain-verification=5PuFgHWhDjsyEAys5TejtQ_tO3KiAwhqMc3rden0U30
- google-site-verification=fsaH-hUfuxIGVqVZzo3ilcyc0ls2J32iMR_a9uapC9Y
- MS=ms75908935
- openai-domain-verification=dv-G0tNMB9CUMchdtG46h0t8eom
- atlassian-domain-verification=MEdCgPdXOMfRne4hQZ5NPpnVHv1agTbteuvN0aiW7yV8WKhZfKDxn8lnSdrfoSLk
- MS=ms76720255
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Verify actual deliverability to rivermarkcu.org
SMTP handshake, catch-all detection, custom validation rules, and Yahoo/Outlook/Gmail verification — know if the mailbox truly exists before you send.
Get 1,000 Free Credits