Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
derentcompany.fr
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 03:42:43 UTC · ↺ Refresh
MX Hostnames
- mail.derentcompany.fr
MX Priorities
- mail.derentcompany.fr: 0
A / AAAA Records
- 76.76.21.21 (no PTR)
Mail Server IPs
- 109.234.164.142 ↩ 109-234-164-142.reverse.odns.fr
SOA Record
Raw SOA
ns1.o2switch.net sysadmin.o2switch.fr 2025032006 3600 1800 1209600 86400
Primary NS (mname)
ns1.o2switch.net
Admin Email (rname)
sysadmin@o2switch.fr
Serial
2025032006
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.o2switch.net
ns2.o2switch.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:109.234.164.142 +a +mx +include:spf.jabatus.fr include:spf.leadconnectorhq.com include:mailgun.org ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
default._domainkey
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- brevo-code:dfb90927238f1fa5706e30eed9a5b488
- SPFv=spf1 ip4:109.234.164.142 +a +mx +include:spf.jabatus.fr include:spf.leadconnectorhq.com include:mailgun.org ~all
- UUY252LSL252
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