Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sdhca.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 14:54:36 UTC · ↺ Refresh
MX Hostnames
- sdhca-org.mail.protection.outlook.com
MX Priorities
- sdhca-org.mail.protection.outlook.com: 0
A / AAAA Records
- 198.49.23.145 (no PTR)
- 198.185.159.145 (no PTR)
- 198.49.23.144
- 198.185.159.144
Mail Server IPs
- 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
ns23.worldnic.com namehost\@worldnic.com 124102917 10800 3600 604800 3600
Primary NS (mname)
ns23.worldnic.com
Admin Email (rname)
namehost\@worldnic@com
Serial
124102917
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns23.worldnic.com
ns24.worldnic.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx ip4:24.111.7.90 include:spf.protection.outlook.com include:arcstonespf.smtp.com ip4:108.59.250.125 ip4:24.220.11.64/26 ip4:24.220.0.0/24 ip4:24.220.17.21/32 ip6:2001:48f8:11:9::/64 include:_spf.kubra.com include:servers.mcsv.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
2 records- SPFv=spf1 a mx ip4:24.111.7.90 include:spf.protection.outlook.com include:arcstonespf.smtp.com ip4:108.59.250.125 ip4:24.220.11.64/26 ip4:24.220.0.0/24 ip4:24.220.17.21/32 ip6:2001:48f8:11:9::/64 include:_spf.kubra.com include:servers.mcsv.net ~all
- MS=ms73798748
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