Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
trnstaffing.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 02:12:19 UTC · ↺ Refresh
MX Hostnames
- trnstaffing-com.mail.protection.outlook.com
MX Priorities
- trnstaffing-com.mail.protection.outlook.com: 0
A / AAAA Records
- 44.212.133.142 ↩ ec2-44-212-133-142.compute-1.amazonaws.com
Mail Server IPs
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1.bdm.microsoftonline.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4.bdm.microsoftonline.com
ns1.bdm.microsoftonline.com
ns2.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
SPF Record
✓ Strict (-all)
v=spf1 mx include:sendgrid.net include:44975798.spf06.hubspotemail.net include:spf.protection.outlook.com include:spf.emailsignatures365.com include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
6 records- SPFv=spf1 mx include:sendgrid.net include:44975798.spf06.hubspotemail.net include:spf.protection.outlook.com include:spf.emailsignatures365.com include:_spf.psm.knowbe4.com -all
- MS=9AF936DF1E457FCF70576BC3BD9E9E9FCA99377D
- oVT2zE7JtMdSf5Z2EhX8T2aQZLUhJ5EccffzsdqKYY3i3y2XOkKfX93YJTqFEeDHp3vxFMhlhqpDcdpvwns4+A==
- MS=ms21341159
- openai-domain-verification=dv-Dra6XpLPf0TqpdAAqleD5nXx
- mscid=CqtKaXOJ/691NXlWTTXful6kQ+pbQGaoM3DDKtDHi3nk6rgrh6/Nn9hUxcOWDwjGFMrtLLX1KUkhJqyrcuN6gw==
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