Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ostusa.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 23:24:24 UTC · ↺ Refresh
MX Hostnames
- ostusa-com.mail.protection.outlook.com
MX Priorities
- ostusa-com.mail.protection.outlook.com: 0
A / AAAA Records
- 23.185.0.2 (no PTR)
- 2620:12a:8000::2 (no PTR)
- 2620:12a:8001::2
Mail Server IPs
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
SOA Record
Raw SOA
ns39.domaincontrol.com dns.jomax.net 2026012900 28800 7200 604800 600
Primary NS (mname)
ns39.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026012900
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns40.domaincontrol.com
ns39.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:email.freshservice.com include:emailus.freshservice.com include:sendgrid.net include:spf.openair.com include:spf.openair1.com include:2158910.spf07.hubspotemail.net include:relay.bswift.com include:_spf.intacct.com ~all
📊 DNS lookups: 9/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
15 records- miro-verification=c5224969116e05151c32e7e106bdfba60b1ac332
- docusign=fba671d2-e479-4d2f-b512-179ca393a127
- ahrefs-site-verification_63ece04bd775b72ee86f4539909059c9d7e54795d7713e21dc04c846046a7f95
- MS=ms28262306
- iO8UtTW3Pudz4WN89QEZyRpiwX9c2K/mtbyWcxU7umfdIQFWixiLnmZ9AlCiGoneHnwzcLpSqZy7KlBWZCK0vA==
- jamf-site-verification=T0LaM_zdiM3GeFfaDLr9pw
- apple-domain-verification=xyg9H7Y8rdMzEPU4
- WkQy6bWH14I7KkVDVSGRL4E2IdhBFhxUXCwvx+XtzHYsPct4q6BDeKG6D04uS4NIsGHJzNtTww7QBXf6B31Y0Q==
- have-i-been-pwned-verification=3cd7cd007241af0e26e60527c468966c
- slack-domain-verification=hPEln1kaWjJTDnnBwZ9y5s8XAawMnwZSCnXBp23o
- MS=ms55965740
- atlassian-domain-verification=k4XnMhr3/ZfqSr/46WOodFzO/PQqihkJ7j4Dv7onr4OzHrJJEGXNVDCsSxcvsxNu
- anthropic-domain-verification-nwaarg=dKbSyBN6LoQK6ZJHxicuxkGG2
- SPFv=spf1 include:spf.protection.outlook.com include:email.freshservice.com include:emailus.freshservice.com include:sendgrid.net include:spf.openair.com include:spf.openair1.com include:2158910.spf07.hubspotemail.net include:relay.bswift.com include:_spf.intacct.com ~all
- intacct-esk=351FD7E1F06C8B3AE0635D06710ADFB1
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