Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
roser-sto.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 04:15:11 UTC · ↺ Refresh
MX Hostnames
- rosersto-com01c.mail.protection.outlook.com
MX Priorities
- rosersto-com01c.mail.protection.outlook.com: 10
A / AAAA Records
- 3.5.245.192 (no PTR)
- 52.95.143.72 ↩ s3-website.eu-west-2.amazonaws.com
- 3.5.245.35 (no PTR)
- 3.5.245.227 (no PTR)
- 3.5.244.113 ↩ s3-r-w.eu-west-2.amazonaws.com
- 52.95.142.116 ↩ s3-website.eu-west-2.amazonaws.com
- 52.95.191.48 ↩ s3-website.eu-west-2.amazonaws.com
- 3.5.244.46 ↩ s3-r-w.eu-west-2.amazonaws.com
Mail Server IPs
No IPs resolved.
SOA Record
Raw SOA
ns-1757.awsdns-27.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1757.awsdns-27.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-30.awsdns-03.com
ns-525.awsdns-01.net
ns-1249.awsdns-28.org
ns-1757.awsdns-27.co.uk
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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
3 records- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms12775068
- DMARCv=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
Full email verification for roser-sto.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits