Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
flag1.us
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 02:34:19 UTC · ↺ Refresh
MX Hostnames
- flag1-us.mail.protection.outlook.com
MX Priorities
- flag1-us.mail.protection.outlook.com: 5
A / AAAA Records
- 64.40.126.97 ↩ id12697nn.securedata.net
Mail Server IPs
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.netnation.com hostmaster.netnation.com 2024122019 14400 1800 3600000 300
Primary NS (mname)
ns1.netnation.com
Admin Email (rname)
hostmaster@netnation.com
Serial
2024122019
Refresh
14400s
Retry
1800s
Expire
3600000s
Minimum TTL
300s
Nameservers (NS)
w.dns.netnation.com
x.dns.netnation.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.constantcontact.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
3 records- MS=ms66560246
- MS=ms27071892
- SPFv=spf1 include:spf.protection.outlook.com include:spf.constantcontact.com -all
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