Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
crs.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 23:37:22 UTC · ↺ Refresh
MX Hostnames
- crs-org.mail.protection.outlook.com
MX Priorities
- crs-org.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
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ns20.digicertdns.com dns.digicertdns.com 2009011721 43200 3600 1209600 180
Primary NS (mname)
ns20.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009011721
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns12.dnsmadeeasy.com
ns15.dnsmadeeasy.com
ns10.dnsmadeeasy.com
ns11.dnsmadeeasy.com
ns14.dnsmadeeasy.com
ns13.dnsmadeeasy.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:52.170.174.24 ip4:72.32.4.189 ip4:35.80.141.6 ip4:44.229.121.55 ip4:148.59.100.16/28 ip4:208.185.235.0/24 ip4:74.205.242.0/28 ip4:20.185.212.224/28 ip4:170.146.224.0/27 ip4:170.146.226.0/27 ip4:170.146.91.40/30 ip4:170.146.221.96/28 ip4:170.146.220.96/28 include:spf.protection.outlook.com include:_spf.salesforce.com include:spf.mandrillapp.com include:_spf.psm.knowbe4.com include:spf-2248456.jmsend.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=r; aspf=r; pct=100; rf=afrf
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._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
6 records- asv=2c469e545fa38c91e4c5f6c8e5351412
- google-site-verification=CA_8n1W_Afy3eufg7E8NXNfnBtUGt5hilZE8yZgRmXU
- apple-domain-verification=ix7DBqFOTc5bj9qd
- Foxit-domain-verification=92fa8c04aa6bbe75410c1817a780c91f
- 1password-site-verification=CSX2VE7M5FDJJCMX2IRYPYCFQA
- SPFv=spf1 ip4:52.170.174.24 ip4:72.32.4.189 ip4:35.80.141.6 ip4:44.229.121.55 ip4:148.59.100.16/28 ip4:208.185.235.0/24 ip4:74.205.242.0/28 ip4:20.185.212.224/28 ip4:170.146.224.0/27 ip4:170.146.226.0/27 ip4:170.146.91.40/30 ip4:170.146.221.96/28 ip4:170.146.220.96/28 include:spf.protection.outlook.com include:_spf.salesforce.com include:spf.mandrillapp.com include:_spf.psm.knowbe4.com include:spf-2248456.jmsend.com -all
Full email verification for crs.org
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