Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
trinitycyber.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 06:33:31 UTC · ↺ Refresh
MX Hostnames
- trinitycyber-com.mail.protection.outlook.com
MX Priorities
- trinitycyber-com.mail.protection.outlook.com: 0
A / AAAA Records
- 13.33.67.115 ↩ server-13-33-67-115.jfk50.r.cloudfront.net
- 13.33.67.21 ↩ server-13-33-67-21.jfk50.r.cloudfront.net
- 13.33.67.84
- 13.33.67.127
Mail Server IPs
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-39.awsdns-04.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-39.awsdns-04.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1081.awsdns-07.org
ns-1814.awsdns-34.co.uk
ns-39.awsdns-04.com
ns-739.awsdns-28.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:8028866.spf07.hubspotemail.net include:_spf.salesforce.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ 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: 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
4 records- atlassian-sending-domain-verification=eaa914c1-e5d6-421e-a43d-26240a8a4bed
- SPFv=spf1 include:spf.protection.outlook.com include:8028866.spf07.hubspotemail.net include:_spf.salesforce.com -all
- MS=ms49057845
- atlassian-domain-verification=YvzDqLPWUQQnB1y7p2SFAJ5qsUrq4We6DnAAVxAjpygnkHQPsYrzJ1Cdvp4AESb6
Full email verification for trinitycyber.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits