Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sunbeltmarketing.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 02:19:04 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-1.mimecast.com
- usb-smtp-inbound-2.mimecast.com
MX Priorities
- usb-smtp-inbound-1.mimecast.com: 10
- usb-smtp-inbound-2.mimecast.com: 20
A / AAAA Records
- 64.88.166.139 (no PTR)
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
webserver.genesiscomputers.com admin.genesiscomputers.com 64 900 600 86400 3600
Primary NS (mname)
webserver.genesiscomputers.com
Admin Email (rname)
admin@genesiscomputers.com
Serial
64
Refresh
900s
Retry
600s
Expire
86400s
Minimum TTL
3600s
Nameservers (NS)
webserver.genesiscomputers.com
dns2.gcom.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:usb._netblocks.mimecast.com include:spf-us.emailsignatures365.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ri=86400; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
1 record- SPFv=spf1 include:spf.protection.outlook.com include:usb._netblocks.mimecast.com include:spf-us.emailsignatures365.com -all
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