arktura.com

Valid Email Server

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
arktura.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 08:40:31 UTC · ↺ Refresh

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MX Hostnames

  • arktura-com.mail.protection.outlook.com

MX Priorities

  • arktura-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 162.159.134.42 (no PTR)
  • 162.159.135.42 (no PTR)
  • 2606:4700:7::a29f:872a
  • 2606:4700:7::a29f:862a

Mail Server IPs

  • 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
  • 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
  • 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
  • 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
  • 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA archer.ns.cloudflare.com dns.cloudflare.com 2403733278 10000 2400 604800 1800
Primary NS (mname)
archer.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2403733278
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

archer.ns.cloudflare.com
nancy.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:1asbl2xb5.spf.checkpoint-spf.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; sp=quarantine; ruf=mailto:[email protected]; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine

DKIM Selectors

✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._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

8 records
  • rhino_accounts=b29911589fb2e5c20aa372310454043f
  • sending_domain1037873=02613cbfdcc0a311cc20ba33c6c73ecf0ad3f101b9a2f3df727d059bbc837b7d
  • SPFv=spf1 include:1asbl2xb5.spf.checkpoint-spf.com include:spf.protection.outlook.com -all
  • MS=ms91903351
  • box-domain-verification=87de2b9aaa591dd08f8bc961caea58d0b18d538888712fd83a78e811d053e99e
  • pardot1037873=e8e266e96272cb3422f2328b5a0648859aec7ec101a8abf41eff0193ff5820e4
  • pardot1037874=1dd4ca1a9167d9d2818d5aee5007072423e0900fea2cc1ecd3a2f0991fd99626
  • pardot1037874=42d32772ee75c4e580eefedc7c938395fbbc071b52d8403f9dbae850808d687e
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