cityofthornton.net

Valid Email Server
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
cityofthornton.net
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-06-03 07:04:40 UTC · ↺ Refresh

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MX Hostnames

  • us-smtp-inbound-2.mimecast.com
  • us-smtp-inbound-1.mimecast.com

MX Priorities

  • us-smtp-inbound-2.mimecast.com: 10
  • us-smtp-inbound-1.mimecast.com: 10

A / AAAA Records

  • 199.117.212.10 ↩ cityofthornton.net

Mail Server IPs

  • 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com

SOA Record

Raw SOA authns1.qwest.net abuse.centurylinkservices.net 2250514000 10800 3600 604800 300
Primary NS (mname)
authns1.qwest.net
Admin Email (rname)
abuse@centurylinkservices.net
Serial
2250514000
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

authns1.qwest.net
authns2.qwest.net

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:199.117.212.252 ip4:199.117.212.4 ip4:43.228.187.74/32 ip4:43.228.185.67/32 ip4:63.237.115.66 ip4:50.242.142.233 ip4:192.195.173.40 include:spf.protection.outlook.com include:_netblocks.mimecast.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✗ None detected

No 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

9 records
  • SPFv=spf1 ip4:199.117.212.252 ip4:199.117.212.4 ip4:43.228.187.74/32 ip4:43.228.185.67/32 ip4:63.237.115.66 ip4:50.242.142.233 ip4:192.195.173.40 include:spf.protection.outlook.com include:_netblocks.mimecast.com ~all
  • gpuhmltvvntsl29k39tc3mpvqe
  • 2fz7PGexZLRk+rRpwN/7QkrTNCYPYxq2FcjnVg6PNRaCOywileZRh8s4gUoJcRupUOk3hssi2daWFkkmDKwAUQ==
  • apple-domain-verification=UOgZ4AW5ACEoT2Ie
  • MS=DAEEFB0E81C14D1379D244B8CF6D64FA27A0AC53
  • f33dvku6en79e6i6pud3d2s613
  • 4rfos3kodh27fs26edsnn1jdil
  • 7p89avgn4ck8qb528e61c0gf4h
  • q0lfm5oui9oo0cgh6g9hbjtrl5
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