Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
firstcommand.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 14:25:38 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 209.12.237.151 (no PTR)
CNAME → wwwfirstcommand.azurewebsites.net
Mail Server IPs
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns1.firstcommand.com hostmaster.firstcommand.com 2026031602 10800 3600 604800 86400
Primary NS (mname)
ns1.firstcommand.com
Admin Email (rname)
hostmaster@firstcommand.com
Serial
2026031602
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns1.firstcommand.com
ns3.firstcommand.com
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=5yyals46._spf._d.mim.ec
📊 DNS lookups: 1/10
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=50; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
⚠ Policy applies to 50% of failing messages only
DKIM Selectors
✗ None detectedNo 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
13 records- ms-domain-verification=f505134c-382b-48f7-a6e3-2b07974b9f8a
- pendo-domain-verification=207db0d6-0a17-4e4e-ad4a-a2e7447a1ef7
- google-site-verification=_yut-MJhObhepKYCwFTg6W-pNZkKzpC7_fgXppg97Wo
- SPFv=spf1 redirect=5yyals46._spf._d.mim.ec
- dropbox-domain-verification=390vs4zwr793
- smartsheet-site-validation=KmZCVyWjn3OX4iLLnbsTFcK2wxYtZ-jB
- docusign=8813a27d-f3ad-4f0c-9068-c92be0941ccd
- SFMC-B4rO9gZovS9ryqh-eU1EMZQ4oXrK_3y_h279iJHI
- ups82XUTVJPBdaPucSUrXdcRS9ANbtc3Wntshnz7UF8H+ZhD7i2wX+MtmcT7mIMj9u6HOCCzA4KpBA32krM5cA==
- adobe-idp-site-verification=80ce9101bb67b373dbce930f88d4b25ce82ed27949fe29238520a729685f259e
- jamf-site-verification=UHqoy-WqUxzjQr1W5VSvYg
- twilio-domain-verification=623c81acc53ed513fb6131f2f1439967
- docusign=569629d0-d812-4717-a7fb-9ec969639d30
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