Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
c2paudit.fr
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 09:03:19 UTC · ↺ Refresh
MX Hostnames
- c2paudit-fr.mail.protection.outlook.com
MX Priorities
- c2paudit-fr.mail.protection.outlook.com: 900
A / AAAA Records
- 172.67.220.55 (no PTR)
- 104.21.78.102 (no PTR)
- 2606:4700:3036::6815:4e66
- 2606:4700:3030::ac43:dc37
Mail Server IPs
- 52.101.166.2 ↩ mail-paup264cu00202.inbound.protection.outlook.com
- 52.101.166.1 ↩ mail-pr0p264cu01301.inbound.protection.outlook.com
- 52.101.166.0 ↩ mail-pa5p264cu00200.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::1 ↩ mail-pr0p264cu01301.inbound.protection.outlook.com
- 2a01:111:f403:ca1e:: ↩ mail-mrzp264cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca25::2 ↩ mail-paup264cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
deb.ns.cloudflare.com dns.cloudflare.com 2398320255 10000 2400 604800 1800
Primary NS (mname)
deb.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398320255
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
deb.ns.cloudflare.com
rocky.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:spf.postal.mycompanyfiles.fr ~all
📊 DNS lookups: 3/10
~ 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
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- DKIMv=DKIM1; t=s; h=sha256; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCezH3RGnUwkgfiufKQPm+UeXEqZjW44JHHVnhjKJrD605BzP58GZaPg85Rkbm/ITmo8TrhM3VlCacbggmHRBfzcPDHJOY9mwXN5/QIJ8CWSm/wWNByuxMbE8/XMfwaKvpzrUstJx12rPM2X4A99jNB4NQ/KCNopqE+a6j0BIWNwwIDAQAB;
- SPFv=spf1 a mx include:spf.postal.mycompanyfiles.fr ~all
- brevo-code:332cd1ca4aa6380d426bb6eaa9b63787
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for c2paudit.fr
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits