Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
arthurmining.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 12:12:22 UTC · ↺ Refresh
MX Hostnames
- arthurmining-com.mail.protection.outlook.com
MX Priorities
- arthurmining-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.16.141 (no PTR)
- 172.67.212.245 (no PTR)
- 2606:4700:3033::ac43:d4f5
- 2606:4700:3034::6815:108d
Mail Server IPs
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
SOA Record
Raw SOA
elinore.ns.cloudflare.com dns.cloudflare.com 2399248434 10000 2400 604800 1800
Primary NS (mname)
elinore.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399248434
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
elinore.ns.cloudflare.com
marek.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:52.149.163.40 include:spf.protection.outlook.com include:39605302.spf01.hubspotemail.net include:emsd1.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
2 records- SPFv=spf1 ip4:52.149.163.40 include:spf.protection.outlook.com include:39605302.spf01.hubspotemail.net include:emsd1.com -all
- MS=ms11942313
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