Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
heckscherfoundation.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 15:22:38 UTC · ↺ Refresh
MX Hostnames
- heckscherfoundation-org.mail.protection.outlook.com
MX Priorities
- heckscherfoundation-org.mail.protection.outlook.com: 10
A / AAAA Records
- 104.21.63.29 (no PTR)
- 172.67.142.170 (no PTR)
- 2606:4700:3033::ac43:8eaa
- 2606:4700:3032::6815:3f1d
Mail Server IPs
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
SOA Record
Raw SOA
athena.ns.cloudflare.com dns.cloudflare.com 2399325253 10000 2400 604800 1800
Primary NS (mname)
athena.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399325253
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
athena.ns.cloudflare.com
chip.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; fo=1; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- anthropic-domain-verification-n54dxq=5KD677IdZ5EZziFBRkFet0uvi
- google-site-verification=8j36YJfakiI27fXcqsv1CgrbTPvsyb3T9jK7t4dEYBc
- pax8validate
- SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
- 00D1a000000K9OG=1TBRf000000018z
- MS=ms57179843
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