Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stscareer.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 04:05:52 UTC · ↺ Refresh
MX Hostnames
- stscareer-com.mail.protection.outlook.com
MX Priorities
- stscareer-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.45.40 (no PTR)
- 172.67.209.104 (no PTR)
- 2606:4700:3037::6815:2d28
- 2606:4700:3031::ac43:d168
Mail Server IPs
- 52.101.124.1 ↩ mail-ty3p286cu00101.inbound.protection.outlook.com
- 52.101.124.0 ↩ mail-tycp286cu02600.inbound.protection.outlook.com
- 52.101.124.5 ↩ mail-tyvp286cu00305.inbound.protection.outlook.com
- 52.101.124.6 ↩ mail-tyvp286cu00206.inbound.protection.outlook.com
- 2a01:111:f403:cc1a::2 ↩ mail-tyvp286cu00302.inbound.protection.outlook.com
- 2a01:111:f403:cc1f:: ↩ mail-os9p286cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc1a::3 ↩ mail-tyvp286cu00203.inbound.protection.outlook.com
- 2a01:111:f403:cc1f::1 ↩ mail-os0p286cu01201.inbound.protection.outlook.com
SOA Record
Raw SOA
damien.ns.cloudflare.com dns.cloudflare.com 2396085424 10000 2400 604800 1800
Primary NS (mname)
damien.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396085424
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ingrid.ns.cloudflare.com
damien.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:162.241.226.85 include:mailgun.org include:spf.protection.outlook.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 +a +mx +ip4:162.241.226.85 include:mailgun.org include:spf.protection.outlook.com ~all
- MS=ms32239032
Full email verification for stscareer.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits