Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tstech.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 22:55:43 UTC · ↺ Refresh
MX Hostnames
- tstech-com.mail.protection.outlook.com
MX Priorities
- tstech-com.mail.protection.outlook.com: 0
A / AAAA Records
- 3.82.132.170 ↩ ec2-3-82-132-170.compute-1.amazonaws.com
Mail Server IPs
- 52.101.157.10 ↩ mail-os0p286cu01302.inbound.protection.outlook.com
- 52.101.124.0 ↩ mail-tycp286cu02600.inbound.protection.outlook.com
- 52.101.124.6 ↩ mail-tyvp286cu00206.inbound.protection.outlook.com
- 52.101.157.40 ↩ mail-os9p286cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns73.worldnic.com namehost.worldnic.com 125092500 10800 3600 604800 3600
Primary NS (mname)
ns73.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125092500
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns74.worldnic.com
ns73.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:165.100.230.192 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
4 records- SPFv=spf1 ip4:165.100.230.192 include:spf.protection.outlook.com -all
- adobe-idp-site-verification=8263ef3b3be4951f8801dca98b03dea7255bdd80a9375e5c4fdf9e299abbd3ef
- atlassian-domain-verification=/smK3dy2oqoYfs5PcXImJ3t4/sYggrf8ss0A/AH/Z/ZP3uaBvxEf6JxEzdPS844N
- MS=ms95893002
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