Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
theolsonco.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 23:47:20 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns63.domaincontrol.com dns.jomax.net 2026022801 28800 7200 604800 600
Primary NS (mname)
ns63.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026022801
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns63.domaincontrol.com
ns64.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com include:e2ma.net include:spf.bombbomb.email ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
5 records- MS=ms55428869
- SPFv=spf1 include:us._netblocks.mimecast.com include:e2ma.net include:spf.bombbomb.email ~all
- MS=84EF7CA020FB41585EFFAEBFFB94D3F0EFC7FA3F
- duo_sso_verification=iBxkqfiKsbFJHrhg6JakakjTdLhb4ShpVdGF4crIQcLtlZKFP08k5Uda5qEAHvzq
- mp140qj6q54a9n87hsfc1apd05
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