Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
springbranchisd.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 22:48:20 UTC · ↺ Refresh
MX Hostnames
- gw16040.fortimail.com
MX Priorities
- gw16040.fortimail.com: 10
A / AAAA Records
- 104.17.71.73 (no PTR)
Mail Server IPs
- 66.35.16.40 ↩ gw16040.fortimail.com
SOA Record
Raw SOA
ns0.dnsmadeeasy.com dns.dnsmadeeasy.com 2008010898 43200 3600 1209600 180
Primary NS (mname)
ns0.dnsmadeeasy.com
Admin Email (rname)
dns@dnsmadeeasy.com
Serial
2008010898
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns3.dnsmadeeasy.com
ns1.dnsmadeeasy.com
ns2.dnsmadeeasy.com
ns0.dnsmadeeasy.com
ns4.dnsmadeeasy.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:customerspf.schoolmessenger.com include:k12insightllc.com include:spf.protection.outlook.com include:43271785.spf05.hubspotemail.net ip4:199.36.164.0/22 ip4:66.35.16.40 ip4:3.214.204.181 ip4:44.211.178.112/28 ip4:3.101.216.144/28 ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; ruf=mailto:[email protected]; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 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
11 records- t6vm3odmsor3bu4do4rgh7nb6r
- s00m7tkvu2cvo1ldp06ptcljp8
- d6a9de68-d1c0-463f-9128-672b01c2f5d0
- adobe-idp-site-verification=3cec038f1d6b28bbe265f1b0a82c984739d4c4bcdd42c84ee6d0b3515e842bda
- MS=ms25536620
- SPFv=spf1 include:customerspf.schoolmessenger.com include:k12insightllc.com include:spf.protection.outlook.com include:43271785.spf05.hubspotemail.net ip4:199.36.164.0/22 ip4:66.35.16.40 ip4:3.214.204.181 ip4:44.211.178.112/28 ip4:3.101.216.144/28 ~all
- apple-domain-verification=06zCEQzwIfkADyqY
- jamf-site-verification=vMntIXqKXX09e5hO7ecytA
- duo_sso_verification=x1kGccbSIy2hn1w5Zm04Ri4uoLpulGay0wlEWdOh8MNzJ92ZsGsae0jcuWNvRglX
- JCh8os62yBPAcawkaRkJZ5ZuQyrD3zSp7v6BKlF0Sj6vIrdNPYMzv3fD00q3D4yE5BIXv5ogi/jynFae3ghO/w==
- QPvuE868jDT5k4PQedTQsP
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