Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sanofipasteur.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 20:06:36 UTC · ↺ Refresh
MX Hostnames
- de-smtp-inbound-2.mimecast.com
- de-smtp-inbound-1.mimecast.com
MX Priorities
- de-smtp-inbound-1.mimecast.com: 5
- de-smtp-inbound-2.mimecast.com: 5
A / AAAA Records
- 54.247.151.159 ↩ ec2-54-247-151-159.eu-west-1.compute.amazonaws.com
Mail Server IPs
- 194.104.108.22 ↩ de-smtp-inbound-1.mimecast.com
- 194.104.110.22 ↩ de-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns1.sanofi-synthelabo.com gtly-domtech.sanofi.com 2016030860 28800 14400 3600000 900
Primary NS (mname)
ns1.sanofi-synthelabo.com
Admin Email (rname)
gtly-domtech@sanofi.com
Serial
2016030860
Refresh
28800s
Retry
14400s
Expire
3600000s
Minimum TTL
900s
Nameservers (NS)
ns4.sanofi-synthelabo.com
ns1.sanofi-synthelabo.com
ns2.sanofi-synthelabo.com
ns3.sanofi-synthelabo.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf-a.sanofi.com include:spf-c.sanofi.com include:spf.protection.outlook.com include:de._netblocks.mimecast.com include:us._netblocks.mimecast.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- 3ds0gl9l5nt2oblrmqufgk8l1m
- 7vrkpmg37ujpeh0gvgqe7uo99c
- HSjAm9icul779K4+QWS1owGHGGKtEgG8t2kPStS82GdyFtx5okaEQk0Vf7UBx/pH766kD50mHPSnH3k6ZvsTtg==
- MS=ms25349889
- k8c5cbjifmo80h16lsqfb5brng
- miro-verification=bb84b539f095145588a21d54bcc6c9f01e90dcdf
- SPFv=spf1 include:spf-a.sanofi.com include:spf-c.sanofi.com include:spf.protection.outlook.com include:de._netblocks.mimecast.com include:us._netblocks.mimecast.com ~all
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 sanofipasteur.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits