Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sos-cs.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 16:49:00 UTC · ↺ Refresh
MX Hostnames
- mx03.ca.digitalprez.com
MX Priorities
- mx03.ca.digitalprez.com: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 38.79.88.10 ↩ mx03.ca.digitalprez.com
SOA Record
Raw SOA
ns-737.awsdns-28.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-737.awsdns-28.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-737.awsdns-28.net
ns-1109.awsdns-10.org
ns-2010.awsdns-59.co.uk
ns-209.awsdns-26.com
SPF Record
✓ Strict (-all)
v=spf1 mx a ip4:38.79.88.1/24 ip4:64.255.203.240/28 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
1 record- SPFv=spf1 mx a ip4:38.79.88.1/24 ip4:64.255.203.240/28 -all
Full email verification for sos-cs.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits