Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
workersfirst.net
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 13:53:28 UTC · ↺ Refresh
MX Hostnames
- workersfirst-net.mail.protection.outlook.com
MX Priorities
- workersfirst-net.mail.protection.outlook.com: 0
A / AAAA Records
- 13.90.31.234 (no PTR)
Mail Server IPs
- 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns49.domaincontrol.com dns.jomax.net 2025011501 28800 7200 604800 600
Primary NS (mname)
ns49.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025011501
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns49.domaincontrol.com
ns50.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:204.15.49.138 ip4:50.86.253.198 include:mx.server365.com include:spf.protection.outlook.com include:dispatch-us.ppe-hosted.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; adkim=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: quarantine
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
2 records- SPFv=spf1 ip4:204.15.49.138 ip4:50.86.253.198 include:mx.server365.com include:spf.protection.outlook.com include:dispatch-us.ppe-hosted.com ~all
- duo_sso_verification=VB5UmaLv3uGTLW0x1YyZyqfrkV8BCc8zEtH1Lk3l2a75vibZHYPOkKZNb3GllDjC
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