Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
spdm.mx
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 23:54:05 UTC · ↺ Refresh
MX Hostnames
- spdm-mx.mail.protection.outlook.com
MX Priorities
- spdm-mx.mail.protection.outlook.com: 10
A / AAAA Records
- 104.21.73.235 (no PTR)
- 172.67.193.90 (no PTR)
- 2606:4700:3037::ac43:c15a
- 2606:4700:3033::6815:49eb
Mail Server IPs
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
clyde.ns.cloudflare.com dns.cloudflare.com 2399436042 10000 2400 604800 1800
Primary NS (mname)
clyde.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399436042
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
clyde.ns.cloudflare.com
rosemary.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx include:us._netblocks.mimecast.com include:sent-via.netsuite.com include:_spf.psm.knowbe4.com a:smtp3.corrigo.com a:smtp4.corrigo.com include:spf.protection.outlook.com ip4:198.2.140.0/24 ip4:64.113.23.25 ip4:172.170.112.154 -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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
3 records- SPFv=spf1 mx include:us._netblocks.mimecast.com include:sent-via.netsuite.com include:_spf.psm.knowbe4.com a:smtp3.corrigo.com a:smtp4.corrigo.com include:spf.protection.outlook.com ip4:198.2.140.0/24 ip4:64.113.23.25 ip4:172.170.112.154 -all
- MS=ms82724427
- knowbe4-site-verification=2d30870ae4a9c5248055cac72c567954
Full email verification for spdm.mx
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