aco.cpa

Valid Email Server
Domain Lookup › aco.cpa

Domain Overview

DNS: ✓ 15d ago Checker: ✓ 15d ago
aco.cpa
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-10-01 22:35:17 UTC · ↺ Refresh

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MX Hostnames

  • aco-cpa.mail.protection.outlook.com

MX Priorities

  • aco-cpa.mail.protection.outlook.com: 0

A / AAAA Records

  • 172.67.189.199 (no PTR)
  • 104.21.41.69 (no PTR)
  • 2606:4700:3031::6815:2945
  • 2606:4700:3037::ac43:bdc7

Mail Server IPs

  • 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 52.101.60.148 ↩ mail-bnypr04cu00104.inbound.protection.outlook.com
  • 52.101.60.2 ↩ mail-bnypr05cu00102.inbound.protection.outlook.com
  • 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:f909::b ↩ mail-bnypr03cu00203.inbound.protection.outlook.com
  • 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c927::6 ↩ mail-bn3pr0501cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA erin.ns.cloudflare.com dns.cloudflare.com 2416277856 10000 2400 604800 1800
Primary NS (mname)
erin.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2416277856
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

erin.ns.cloudflare.com
ken.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:67.225.208.26 ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • MS=ms96686198
  • knowbe4-site-verification=2e652c9821272b7841afefb2da960b02
  • SPFv=spf1 ip4:67.225.208.26 ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com -all
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