Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
climbcu.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 14:35:22 UTC · ↺ Refresh
MX Hostnames
- climbcu-org.mail.protection.outlook.com
MX Priorities
- climbcu-org.mail.protection.outlook.com: 0
A / AAAA Records
- 3.15.123.169 ↩ ec2-3-15-123-169.us-east-2.compute.amazonaws.com
- 3.132.134.100 ↩ ec2-3-132-134-100.us-east-2.compute.amazonaws.com
- 3.22.17.92
Mail Server IPs
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
melnicoff.ns.cloudflare.com dns.cloudflare.com 2399398693 10000 2400 604800 1800
Primary NS (mname)
melnicoff.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399398693
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
monroe.ns.cloudflare.com
melnicoff.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:spf.emailsignatures365.com include:amazonses.com include:_spf.e2ma.net include:sendgrid.net include:spf.meridianlink.com include:_external.pscu.com ip4:68.171.150.128/26 -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=r; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector2._domainkey
s1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector2
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- google-site-verification=Y4H4VMgKOYAw-gQF3hhF5rFcdss4YGASwzNc62gD9OM
- knowbe4-site-verification=115e339d0de33293bca2e8264f79751e
- notion-domain-verification=aFjccqVTnrURdhN1J8milRfd09f5QVzdlxHz2pj7JPA
- SPFv=spf1 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:spf.emailsignatures365.com include:amazonses.com include:_spf.e2ma.net include:sendgrid.net include:spf.meridianlink.com include:_external.pscu.com ip4:68.171.150.128/26 -all
- MS=ms36115695
- apple-domain-verification=kWqpNGrNFwbfZjax
- docusign=fb366dc0-2cda-4848-b5ff-fda1b0d7be52
- e2ma-verification=r4gib
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