Domain Overview
DNS: ✓ 21h ago
Checker: ✓ 21h ago
aptusknowledge.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-07-18 09:53:11 UTC · ↺ Refresh
MX Hostnames
- aptusknowledge-com.mail.protection.outlook.com
MX Priorities
- aptusknowledge-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.36.86 (no PTR)
- 172.67.190.176 (no PTR)
- 2606:4700:3030::ac43:beb0 (no PTR)
- 2606:4700:3031::6815:2456 (no PTR)
Mail Server IPs
- 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
- 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
- 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc1f::4 ↩ mail-os8pr02cu00104.inbound.protection.outlook.com
- 2a01:111:f403:cc1a::8 ↩ mail-tydpr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
aaron.ns.cloudflare.com dns.cloudflare.com 2409243520 10000 2400 604800 1800
Primary NS (mname)
aaron.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2409243520
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
dee.ns.cloudflare.com
aaron.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:barracuda.vprot.com.my -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- MS=ms27715998
- bvm-site-verification=3cf68bfba75220c881f18659e32ac4f09cd7eabf
- google-site-verification=K8N_Kcsd4SgxepgNUd5YMXbmPvrdAvukIQLlOBQ7mVI
- SPFv=spf1 include:spf.protection.outlook.com include:barracuda.vprot.com.my -all
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