Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hef.mx
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 01:43:49 UTC · ↺ Refresh
MX Hostnames
- hef-mx.mail.protection.outlook.com
MX Priorities
- hef-mx.mail.protection.outlook.com: 0
A / AAAA Records
- 217.70.184.55 ↩ webredir.gandi.net
Mail Server IPs
- 52.101.166.0 ↩ mail-pa5p264cu00200.inbound.protection.outlook.com
- 52.101.166.2 ↩ mail-paup264cu00202.inbound.protection.outlook.com
- 52.101.166.1 ↩ mail-pr0p264cu01301.inbound.protection.outlook.com
- 52.101.164.0 ↩ mail-mrzp264cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca25:: ↩ mail-pa5p264cu00200.inbound.protection.outlook.com
- 2a01:111:f403:ca25::2 ↩ mail-paup264cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca25::1 ↩ mail-pr0p264cu01301.inbound.protection.outlook.com
- 2a01:111:f403:ca1e:: ↩ mail-mrzp264cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.gandi.net hostmaster.gandi.net 1774483200 10800 3600 604800 10800
Primary NS (mname)
ns1.gandi.net
Admin Email (rname)
hostmaster@gandi.net
Serial
1774483200
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns-174-b.gandi.net
ns-174-a.gandi.net
ns-101-c.gandi.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; ruf=mailto:[email protected]; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
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