Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
thompsoncoburn.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 06:03:23 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 20
A / AAAA Records
- 141.193.213.10 (no PTR)
- 20.48.202.170 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns77.worldnic.com namehost.worldnic.com 126031715 10800 3600 604800 3600
Primary NS (mname)
ns77.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126031715
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns77.worldnic.com
ns78.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:63.77.47.160 ip4:63.77.47.159 ip4:63.77.47.205 ip4:63.77.109.21 ip4:52.1.234.206 ip4:52.70.152.226 ip4:54.165.79.164 include:_netblocks.mimecast.com include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
13 records- SMjCXUTr2EtaOwmtl3YplaAvotmc8ywTDd1sjZZY/Oedst6NnZamSrq6FP9TnFNVwbaOb0MTUSoeGE4IoN75ug==
- Zc9NBgochr8VSDl06Jmw5SdQsz1U2xGE7A0/OoNLLzu/pXXonp86RSIBRWvrsEyYaPb/PVu2r435V9cNRk3l3g==
- 9fgkz0tdjbccszvw0tq40w7dmw1mkwdt
- myQGNGCJFDLj4hL5TLT/uXQ+FuZHxeBimLgX1vlEyk06tuV15pnjzXvQdjrNcx/luUWBvFNEKbU2N/hC7Aftsg==
- _ev1jj1p7kybbj33b8k1ntykczuaa05m
- apple-domain-verification=aDttAfSOlVAIgj4g
- 65f3923eb62ec8e03c0932843d0c22821a1ffe36b5342b342a
- ZOOM_verify_hrZ6ISFAiNSYkDKWrGO9xA
- duo_sso_verification=jFzHcNRdR3ZlgNsMASQUfBjtcnhJHjqWxuRbek9gyP67GwlAffPE7Zzv2MugS6ON
- ciscocidomainverification=4c137cebe670994aa81321a8514ec0e36627dc53b6fb91294a15f392a09024ef
- 96f100f0a12ab3f613e113823d114dd4c46781ca4ba07d4cf9
- citrix.mobile.ads.otp=e02zwp79xs1248ha9bu5kr
- SPFv=spf1 mx ip4:63.77.47.160 ip4:63.77.47.159 ip4:63.77.47.205 ip4:63.77.109.21 ip4:52.1.234.206 ip4:52.70.152.226 ip4:54.165.79.164 include:_netblocks.mimecast.com include:spf.protection.outlook.com -all
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