Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fdh-is.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 06:30:10 UTC · ↺ Refresh
MX Hostnames
- fdhis-com0i.mail.protection.outlook.com
MX Priorities
- fdhis-com0i.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.11 (no PTR)
- 141.193.213.10 (no PTR)
Mail Server IPs
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns20.digicertdns.com dns.digicertdns.com 2009010104 43200 3600 1209600 180
Primary NS (mname)
ns20.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009010104
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns23.digicertdns.net
ns22.digicertdns.com
ns20.digicertdns.com
ns21.digicertdns.com
ns25.digicertdns.net
ns24.digicertdns.net
SPF Record
✓ Strict (-all)
v=spf1 include:us._netblocks.mimecast.com include:_spf.salesforce.com include:spf.protection.outlook.com include:7419525.spf07.hubspotemail.net include:_spf.psm.knowbe4.com include:_spf.createsend.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 3 found
mail._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
6 records- MS=ms91256671
- google-site-verification=C2vHWuzxx2cUVJC6-55YbKxipq_Vp2_MfDLoWavGL98
- moGGkgwIQBJBDqp9i82x7NK3vymjVEFQMWhs0t+QUx07upBKZDjE7U1WvDepqkPS+jM8mnqh9dcqAT31ZgnnQg==
- brevo-code:ecaecff75cd0452e6d0717a3f8a4ada7
- SPFv=spf1 include:us._netblocks.mimecast.com include:_spf.salesforce.com include:spf.protection.outlook.com include:7419525.spf07.hubspotemail.net include:_spf.psm.knowbe4.com include:_spf.createsend.com -all
- cisco-ci-domain-verification=5e9ac15810e7614e069a1da9654429208b2bd6d3f81ace2a1d914a07a1aa63da
Full email verification for fdh-is.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits