Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
harris.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 15:28:45 UTC · ↺ Refresh
MX Hostnames
- mx.l3harris.com
MX Priorities
- mx.l3harris.com: 10
A / AAAA Records
- 192.124.8.71 ↩ l3hpac.org
Mail Server IPs
- 192.52.235.35 ↩ usmlb1rnpmx01pin.l3harris.com
SOA Record
Raw SOA
mlb-ib-gm.net.harris.com dnsadmin.harris.com 101 10800 3600 2419200 900
Primary NS (mname)
mlb-ib-gm.net.harris.com
Admin Email (rname)
dnsadmin@harris.com
Serial
101
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
dns01.l3harris.com
dns04.l3harris.com
dns03.l3harris.com
dns02.l3harris.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:128.170.196.0/25 ip4:192.52.235.128/28 ip4:128.170.61.64/28 ip4:192.52.235.32/27 ip4:128.170.207.0/24 ip4:35.169.203.92/32 ip4:52.227.183.169/32 ip4:52.227.164.238/32 ip4:128.170.60.25/32 ip4:192.160.117.25/32 include:spf.protection.outlook.com include:customers.clickdimensions.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;rua=mailto:[email protected];ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✗ None detectedNo 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
2 records- SPFv=spf1 ip4:128.170.196.0/25 ip4:192.52.235.128/28 ip4:128.170.61.64/28 ip4:192.52.235.32/27 ip4:128.170.207.0/24 ip4:35.169.203.92/32 ip4:52.227.183.169/32 ip4:52.227.164.238/32 ip4:128.170.60.25/32 ip4:192.160.117.25/32 include:spf.protection.outlook.com include:customers.clickdimensions.com -all
- _6jbh3htowgmmi7vb1hu3njp1w5dvgkk
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