Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
esmschools.org
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 10:35:36 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
- 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
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
arvind.ns.cloudflare.com dns.cloudflare.com 2398025783 10000 2400 604800 1800
Primary NS (mname)
arvind.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398025783
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
kelly.ns.cloudflare.com
arvind.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com include:esmschools-org.spf.smtp25.com include:_spf.google.com include:_spf.psm.knowbe4.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=100
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 131 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
10 records- MS=ms69730972
- S7g2yO8+XqK3jqk4GfwOAA==
- adobe-idp-site-verification=300694432ffe8d97f449653ec667e4089214c74404bc865066abab709876133e
- apple-domain-verification=aEeBrBzelauVwsbI
- google-site-verification=TWUeK6lb3RlFu2_5hFWMA1Vojzx0jKQZIYLGhp3gxkk
- google-site-verification=eqb2Opxdy83Og5StVOThzgiC8ei3SS9X5AfIA6cKa3M
- nf3ds7gbw7qrs3srv96b8r0lzczy41d1
- SPFv=spf1 include:us._netblocks.mimecast.com include:esmschools-org.spf.smtp25.com include:_spf.google.com include:_spf.psm.knowbe4.com ~all
- yef-uq5-muS
- 6kKwgs2rwkJ8ve3cYWUphrzGQDdzuyRW9kjZcMXa
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