Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
k12.sd.us
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 07:39:38 UTC · ↺ Refresh
MX Hostnames
- smtp.sd.gov
- smtpb.sd.gov
MX Priorities
- smtp.sd.gov: 10
- smtpb.sd.gov: 10
A / AAAA Records
- 206.176.53.70 ↩ k12.sd.us
Mail Server IPs
- 206.176.52.22 ↩ mail.k12.sd.us
- 206.176.51.100 ↩ smtpb.sd.gov
SOA Record
Raw SOA
ns1.k12.sd.us dns.k12.sd.us 2016062523 3600 600 1209600 3600
Primary NS (mname)
ns1.k12.sd.us
Admin Email (rname)
dns@k12.sd.us
Serial
2016062523
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns2.k12.sd.us
ns1.k12.sd.us
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:206.176.52.0/23 ip4:206.176.51.0/24 ip4:97.65.91.0/24 ip4:207.250.170.0/26 ip4:207.250.245.64/26 include:spf.protection.outlook.com include:_spf.bbnotify.net ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
mail._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
10 records- ZOOM_verify_R16dTJAnTC--ka4fFbFP5w
- VxIdOmBu1kUngF/+jbodCZWMSOLQOzBQa4Y0+EGEa16appkyfsYVkDrIXfGLkBxOTcBwznrQ9bFIHg5aCgbHeA==
- SPFv=spf1 ip4:206.176.52.0/23 ip4:206.176.51.0/24 ip4:97.65.91.0/24 ip4:207.250.170.0/26 ip4:207.250.245.64/26 include:spf.protection.outlook.com include:_spf.bbnotify.net ~all
- utqnvZEFKMfrkpUnuTE7TsNTdQxC+QLnldkm3Jl3pqBgYeIWzL4hvscMHoxHv1ZfYhIAHtmmwU3jcjD1L/5p6g==
- 69p6rj54svbqts6m93vidm4v6p
- cTjT9feqfFJOPLeWB9WJ1B5lZRYMJKaL7uAXnUKsz2I0faTSJR79e5FLUmOQE+Lx6X2+qdekk+bLvr3poTR2jw==
- adobe-idp-site-verification=f31ce08f09db4d7e4c73e43eeb2a2682c5630fc40cc8384dc4cbe090d9cfb0ad
- google-site-verification=hmGG1EYZNc606O8Q0627HKOVoJBZ6UTAx4JpMGg8inA
- Mosyle-verification-7050826977843458
- MS=ms98555766
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