mtnbrook.k12.al.us

Valid Email Server
Domain Lookup › mtnbrook.k12.al.us

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
mtnbrook.k12.al.us
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-04 21:33:52 UTC · ↺ Refresh

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MX Hostnames

  • mail.mtnbrook.k12.al.us

MX Priorities

  • mail.mtnbrook.k12.al.us: 10

A / AAAA Records

  • 54.221.139.169 ↩ ec2-54-221-139-169.compute-1.amazonaws.com
  • 18.233.124.95 ↩ ec2-18-233-124-95.compute-1.amazonaws.com

Mail Server IPs

  • 199.248.173.250 ↩ mail.mtnbrook.k12.al.us

SOA Record

Raw SOA dns1.mtnbrook.k12.al.us hostmaster.mtnbrook.loc 2007083197 900 600 86400 60
Primary NS (mname)
dns1.mtnbrook.k12.al.us
Admin Email (rname)
hostmaster@mtnbrook.loc
Serial
2007083197
Refresh
900s
Retry
600s
Expire
86400s
Minimum TTL
60s

Nameservers (NS)

dnsxfr.asc.edu
dns1.mtnbrook.k12.al.us
ns1.asc.edu

SPF Record

✓ Strict (-all)
v=spf1 ip4:199.248.173.250 ip4:136.228.192.129 ip4:40.97.231.53 ip4:52.177.86.103 ip4:209.114.133.0/28 ip4:206.210.72.4 ip4:199.36.164.0/22 ip4:160.109.27.129 ip4:50.31.59.190 include:mailgun.org include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected]
~ 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
✓ 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
  • SPFv=spf1 ip4:199.248.173.250 ip4:136.228.192.129 ip4:40.97.231.53 ip4:52.177.86.103 ip4:209.114.133.0/28 ip4:206.210.72.4 ip4:199.36.164.0/22 ip4:160.109.27.129 ip4:50.31.59.190 include:mailgun.org include:spf.protection.outlook.com -all
  • sophos-domain-verification=3925dab8413c587d3e9118ccc695edccd62451d793722d0d2e0bf97f1ab292db
  • duo_sso_verification=NHV9eAPHSlomFjsyCSFs3MlQZ0i9xu89j6JIN5hZIknHS1KcurL6VnzIejh7Dy4m
  • MS=6512C0627F7C418E1C8CFECFC78A4F504B810236
  • google-site-verification=8qd7iFMxHOqpVNskgu46QTBxgk7pOPbW7v19qrzJBXI
  • canva-site-verification=aBK3MT3WAjeJNh5c5UWHMQ
  • adobe-idp-site-verification=0f3aaef1a835b801f1aab9c56f26dc8f8ce66df4bcc679e121d3d2430c1c5f18
  • apple-domain-verification=rZPI9rQfyCFosHnk
  • jhqW5MBZ0QP/1aEay4/AyeBJwd+udiObcQakbAjgoBofWmDlT6+AWFVlTCyF/zxFgnoIrSLuFU22fktKmd4Zag==
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