Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
flatfee.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 09:17:32 UTC · ↺ Refresh
MX Hostnames
- flatfee-com.mail.protection.outlook.com
MX Priorities
- flatfee-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.195.229 (no PTR)
- 104.21.60.111 (no PTR)
- 2606:4700:3034::ac43:c3e5
- 2606:4700:3036::6815:3c6f
Mail Server IPs
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
bonnie.ns.cloudflare.com dns.cloudflare.com 2397950500 10000 2400 604800 1800
Primary NS (mname)
bonnie.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397950500
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jaxson.ns.cloudflare.com
bonnie.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:emailsrvr.com include:sendgrid.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- DMARCv=DMARC1; p=none; rua=mailto:[email protected]
- SPFv=spf1 include:spf.protection.outlook.com include:emailsrvr.com include:sendgrid.net -all
- MS=ms22945976
- qtgvh85es696gbpveqb270c2co
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