Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jlbuilding.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 20:37:42 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-2.mimecast.com
- usb-smtp-inbound-1.mimecast.com
MX Priorities
- usb-smtp-inbound-1.mimecast.com: 0
- usb-smtp-inbound-2.mimecast.com: 0
A / AAAA Records
- 162.159.134.42 (no PTR)
Mail Server IPs
- 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
SOA Record
Raw SOA
ns59.domaincontrol.com dns.jomax.net 2026020404 28800 7200 604800 600
Primary NS (mname)
ns59.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026020404
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns60.domaincontrol.com
ns59.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:104.198.10.246 ip4:75.147.95.1 ip4:75.147.95.49 ip4:75.147.96.9 ip4:199.241.175.54 ip4:64.106.173.0/25 ip4:40.95.33.50 include:relay.mailchannels.net include:spf.protection.outlook.com include:usb._netblocks.mimecast.com -all
📊 DNS lookups: 3/10
✓ 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
1 record- SPFv=spf1 ip4:104.198.10.246 ip4:75.147.95.1 ip4:75.147.95.49 ip4:75.147.96.9 ip4:199.241.175.54 ip4:64.106.173.0/25 ip4:40.95.33.50 include:relay.mailchannels.net include:spf.protection.outlook.com include:usb._netblocks.mimecast.com -all
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