alarmguardsecurity.com

Valid Email Server
Domain Lookup › alarmguardsecurity.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
alarmguardsecurity.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-23 11:29:08 UTC · ↺ Refresh

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MX Hostnames

  • usb-smtp-inbound-2.mimecast.com
  • usb-smtp-inbound-1.mimecast.com

MX Priorities

  • usb-smtp-inbound-1.mimecast.com: 10
  • usb-smtp-inbound-2.mimecast.com: 10

A / AAAA Records

  • 3.220.147.160 ↩ ec2-3-220-147-160.compute-1.amazonaws.com

Mail Server IPs

  • 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
  • 170.10.152.242 ↩ usb-smtp-delivery-2.mimecast.com

SOA Record

Raw SOA ns03.gcd-dns.com dns.jomax.net 2026072300 28800 7200 604800 600
Primary NS (mname)
ns03.gcd-dns.com
Admin Email (rname)
dns@jomax.net
Serial
2026072300
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns03.gcd-dns.com
ns04.gcd-dns.com

SPF Record

✓ Strict (-all)
v=spf1 include:usb._netblocks.mimecast.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • 0ed1fe018a5993da85e26e477e9f66f5b0b1b8428d
  • adobe-idp-site-verification=24d7d2db470ae57836f23b53a09eef09d908ca62b6f6eb73473344e351d2c032
  • SPFv=spf1 include:usb._netblocks.mimecast.com include:spf.protection.outlook.com -all
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