Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
docu.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 22:13:39 UTC · ↺ Refresh
MX Hostnames
- docu-com.mail.protection.outlook.com
MX Priorities
- docu-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.172.171 (no PTR)
- 104.21.47.210 (no PTR)
- 2606:4700:3037::ac43:acab
- 2606:4700:3035::6815:2fd2
Mail Server IPs
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
SOA Record
Raw SOA
hope.ns.cloudflare.com dns.cloudflare.com 2398761623 10000 2400 604800 1800
Primary NS (mname)
hope.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398761623
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
wesley.ns.cloudflare.com
hope.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:93.190.73.97 ip4:93.190.73.52 ip4:5.148.165.135 ip4:5.148.165.136 ip4:5.148.165.137 ip4:5.148.165.138 ip4:193.72.144.199 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
3 records- SPFv=spf1 ip4:93.190.73.97 ip4:93.190.73.52 ip4:5.148.165.135 ip4:5.148.165.136 ip4:5.148.165.137 ip4:5.148.165.138 ip4:193.72.144.199 include:spf.protection.outlook.com -all
- MS=ms62373904
- MS=ms81418582
Full email verification for docu.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits