Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cofo.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 03:56:55 UTC · ↺ Refresh
MX Hostnames
- cofo-de.mail.protection.outlook.com
MX Priorities
- cofo-de.mail.protection.outlook.com: 10
A / AAAA Records
- 104.21.95.82 (no PTR)
- 172.67.143.214 (no PTR)
- 2606:4700:3031::6815:5f52
- 2606:4700:3033::ac43:8fd6
Mail Server IPs
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
SOA Record
Raw SOA
chuck.ns.cloudflare.com dns.cloudflare.com 2398926001 10000 2400 604800 1800
Primary NS (mname)
chuck.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398926001
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
paige.ns.cloudflare.com
chuck.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:spf.emailsys.net ip4:81.169.216.115 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
4 records- google-site-verification=6rRuBafOtFnCNAaHV0G52PeG6lTlF7sNJFkeN9sI71w
- SPFv=spf1 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:spf.emailsys.net ip4:81.169.216.115 -all
- MS=ms85467375
- facebook-domain-verification=iy8b14k0ab5n7dydl33jbqhsrybmdo
Full email verification for cofo.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits