Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
knoxcounty.org
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 21:33:47 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
- 52.85.61.39 ↩ server-52-85-61-39.ewr53.r.cloudfront.net
- 52.85.61.125 ↩ server-52-85-61-125.ewr53.r.cloudfront.net
- 52.85.61.97 ↩ server-52-85-61-97.ewr53.r.cloudfront.net
- 52.85.61.117 ↩ server-52-85-61-117.ewr53.r.cloudfront.net
Mail Server IPs
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns-710.awsdns-24.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-710.awsdns-24.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1154.awsdns-16.org
ns-151.awsdns-18.com
ns-1970.awsdns-54.co.uk
ns-710.awsdns-24.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com ip4:207.191.184.198 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:spf.mandrillapp.com include:sendgrid.net include:spf.homecu.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
9 records- cisco-ci-domain-verification=480a0c3759cb3dc0e40bc2abde9f1308e0643f744232f0bf744d77c38cd92e03
- duo_sso_verification=y4Q1THL0mmU8ZYBa0NCFVfZev9gOziVb4l6kbkIi6S56dIZwTMjmQEE3YfeLGZWs
- qSLch5pwb-dwiMv86b-m
- SPFv=spf1 include:us._netblocks.mimecast.com ip4:207.191.184.198 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:spf.mandrillapp.com include:sendgrid.net include:spf.homecu.net ~all
- /44yAHO6zrZj4BppwkzZaAjTpfzsnsEKFlXeTARVGqEacQdyBzgkpiSFTZSO2tPhylpjrPPsC8hxEk0HfHmZgw==
- 0ed1fe018ac9bf48ebe2474c46b2d7c4e858d84e9f
- 400fde42-8782-38d3-e063-0100007f7036
- adobe-idp-site-verification=c81c4ce627de2b52044625e765bb409cc79dd22cacd4d39efc3b053dbdcd29e7
- apple-domain-verification=wWHz156SKclarKan
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