Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sharylandisd.org
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 22:26:36 UTC · ↺ Refresh
MX Hostnames
- d131922a.ess.barracudanetworks.com
- d131922b.ess.barracudanetworks.com
MX Priorities
- d131922a.ess.barracudanetworks.com: 0
- d131922b.ess.barracudanetworks.com: 5
A / AAAA Records
- 104.17.71.73 (no PTR)
Mail Server IPs
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns61.domaincontrol.com dns.jomax.net 2026030300 28800 7200 604800 600
Primary NS (mname)
ns61.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026030300
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns62.domaincontrol.com
ns61.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:64.209.157.66 ip4:64.209.157.68 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:customerspf.schoolmessenger.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
4 records- openai-domain-verification=dv-fL3I5ABX6VVMlPFYo5rBA0X3
- v=7ec049b0-468b-4ddd-a936-e98753bf6f37
- duo_sso_verification=p2DmYic6Xmy2LRqPRTPATVPCpY7d3b4qm7S9kx2sL0vd0Lwim1ipSDVSYYCXmNFi
- SPFv=spf1 ip4:64.209.157.66 ip4:64.209.157.68 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:customerspf.schoolmessenger.com -all
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