Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
arapahoegov.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 07:16:19 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-1.mimecast.com
- usb-smtp-inbound-2.mimecast.com
MX Priorities
- usb-smtp-inbound-1.mimecast.com: 0
- usb-smtp-inbound-2.mimecast.com: 0
A / AAAA Records
- 75.2.20.73 ↩ aab3383d28692e280.awsglobalaccelerator.com
Mail Server IPs
- 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
- 170.10.152.242 ↩ usb-smtp-delivery-2.mimecast.com
SOA Record
Raw SOA
ns1-08.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-08.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4-08.azure-dns.info
ns1-08.azure-dns.com
ns2-08.azure-dns.net
ns3-08.azure-dns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=an0zcq1v._spf._d.mim.ec
📊 DNS lookups: 1/10
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; 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
✓ 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- SPFv=spf1 redirect=an0zcq1v._spf._d.mim.ec
- apple-domain-verification=mYVlodutEuvNg6j6
- google-site-verification=IPhFp5qZ7AhIdNTx21OejHkkdGRvKeOpWN8xW26su2o
- duo_sso_verification=SKstfQDMWn7aQmmdbbQIsCm4LQBl5VjzlgMdbuNdWD7reh9FTWtQJQaiOTxr1rrA
- Jcqac0SV50cSfaaOqoe6
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