Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
doctorsonduty.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 12:49:34 UTC · ↺ Refresh
MX Hostnames
- mx1-us1.ppe-hosted.com
- mx2-us1.ppe-hosted.com
MX Priorities
- mx1-us1.ppe-hosted.com: 0
- mx2-us1.ppe-hosted.com: 0
A / AAAA Records
- 172.67.136.66 (no PTR)
- 104.21.26.125 (no PTR)
- 2606:4700:3035::6815:1a7d (no PTR)
- 2606:4700:3036::ac43:8842 (no PTR)
Mail Server IPs
- 148.163.129.50 ↩ mx1-us1.ppe-hosted.com
- 67.231.154.162 ↩ mx1-us1.ppe-hosted.com
- 67.231.154.163 ↩ mx2-us1.ppe-hosted.com
- 148.163.129.51 ↩ mx2-us1.ppe-hosted.com
SOA Record
Raw SOA
chin.ns.cloudflare.com dns.cloudflare.com 2397787301 10000 2400 604800 1800
Primary NS (mname)
chin.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397787301
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
miguel.ns.cloudflare.com
chin.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a:dispatch-us.ppe-hosted.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=10; aspf=s; adkim=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
⚠ Policy applies to 10% of failing messages only
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- MS=ms83825030
- google-site-verification=IQZaytyhCCG1ReoomxnId65JvtmR4A12q9zWWyTgsAQ
- ppe-852e0f4346022d85fe2b0a09264d97e8ba95feb7
- SPFv=spf1 a:dispatch-us.ppe-hosted.com include:spf.protection.outlook.com -all
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