Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sentryequipment.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 17:14:09 UTC · ↺ Refresh
MX Hostnames
- sentryequipment-com.mail.protection.outlook.com
MX Priorities
- sentryequipment-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.137.13 (no PTR)
- 104.21.38.173 (no PTR)
- 2606:4700:3032::ac43:890d
- 2606:4700:3033::6815:26ad
Mail Server IPs
- 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
SOA Record
Raw SOA
igor.ns.cloudflare.com dns.cloudflare.com 2397608888 10000 2400 604800 1800
Primary NS (mname)
igor.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397608888
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
igor.ns.cloudflare.com
sara.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx a ip4:216.12.8.22 include:spf.protection.outlook.com include:mail.zendesk.com include:spf.tmes.trendmicro.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict 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
4 records- MS=ms82986713
- tmes=ff57f131d2286e51269d5eec287bfc3b
- SPFv=spf1 mx a ip4:216.12.8.22 include:spf.protection.outlook.com include:mail.zendesk.com include:spf.tmes.trendmicro.com -all
- 84ej8UvQtt/btEYMa7sL9q5D7PI9Y8m+4wmCfIEKvcsuMK3Pq8hBoeHxsmo9u+hhlGeKZJi3Ji81Sl8llLdinw==
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