Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tarrantcountytx.gov
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 02:27:02 UTC · ↺ Refresh
MX Hostnames
- tarrantcountytx-gov.mail.protection.outlook.com
MX Priorities
- tarrantcountytx-gov.mail.protection.outlook.com: 0
A / AAAA Records
- 192.84.52.206 (no PTR)
Mail Server IPs
- 52.101.9.19 ↩ mail-blapr09cu00103.inbound.protection.outlook.com
- 52.101.8.50 ↩ mail-dm6pr09cu00202.inbound.protection.outlook.com
- 52.101.8.52 ↩ mail-ds0pr09cu00104.inbound.protection.outlook.com
- 52.101.11.12 ↩ mail-sa9pr09cu00104.inbound.protection.outlook.com
- 2a01:111:f403:f904::1 ↩ mail-ds0pr09cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90e::1 ↩ mail-sa9pr09cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f900::1 ↩ mail-blapr09cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f904:: ↩ mail-dm6pr09cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.tarrantcounty.com dns.tarrantcounty.com 2018011606 1800 180 1209600 3600
Primary NS (mname)
ns1.tarrantcounty.com
Admin Email (rname)
dns@tarrantcounty.com
Serial
2018011606
Refresh
1800s
Retry
180s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
cmtu.mt.ns.els-gms.att.net
ns1901.tarrantcounty.com
ns1.tarrantcounty.com
ns4.tarrantcountytx.gov
dbru.br.ns.els-gms.att.net
dmtu.mt.ns.els-gms.att.net
cbru.br.ns.els-gms.att.net
ns3.tarrantcountytx.gov
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:192.84.52.0/24 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:spf.livehelpnow.net include:us-gov-east-1.spf.outbound-mail.appian-gov-customer.com ip4:52.188.137.143 ip4:20.42.38.64 -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
11 records- logmein-verification-code=b259a3b6-71a7-4092-8746-02df7365b572
- t+3TOtfk5h3wOAsIoGg5V8JNFgQsBuFMtCK8JnJL19Vd88GOPo4loKJgClptL0U6AzdpNRUpfBilpaIk83c1qg==
- ecostruxure-it-verification=166c6652-b83c-4b7f-ab96-8058b63a6248
- apple-domain-verification=4GQcmIMnArVpkmJQ
- docusign=7bdf5fc7-9be6-482a-a8d3-b80a82cf3d63
- docusign=9eb4f657-29a2-4179-a92b-6e8acbe9ce12
- knowbe4-site-verification=6f41db6d208728a38e045ba084420b68
- SPFv=spf1 a mx ip4:192.84.52.0/24 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:spf.livehelpnow.net include:us-gov-east-1.spf.outbound-mail.appian-gov-customer.com ip4:52.188.137.143 ip4:20.42.38.64 -all
- Omxk3AqqobfaFKc8y81yXt4o9MRmMYt24mpkCIaBoTVQyyc5gciHRAC0PfyeQf+MJ0Zg4BS8lSiF7fcXwGbSLA==
- successfactors-site-verification=ODVlZDJjMDk4Mjk3N2U3MDZlMzE4NDhlZmU3Yzg5MmNhYzM0ODc4ZTMwODczNTBmMjAyODZlN2Q3MGZlNjczMA==
- MS=ms81781380
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