Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fmschools.org
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 10:35:38 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt4.aspmx.l.google.com
- aspmx.l.google.com
- alt3.aspmx.l.google.com
MX Priorities
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
A / AAAA Records
- 163.153.114.42
Mail Server IPs
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 192.178.218.27 ↩ yuiadtq-in-f27.1e100.net
- 2607:f8b0:4004:c17::1a ↩ bl-in-f26.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
SOA Record
Raw SOA
arvind.ns.cloudflare.com dns.cloudflare.com 2399239438 10000 2400 604800 1800
Primary NS (mname)
arvind.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399239438
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
arvind.ns.cloudflare.com
kelly.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ip4:170.158.81.4 include:_spf.google.com include:customerspf.schoolmessenger.com include:mailgun.org ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; aspf=s; adkim=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 216 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
6 records- autodesk-domain-verification=EV1NE2RbwCxDnMIsyXr8
- cisco-ci-domain-verification=21a5ba72205a29e924f5a4b585e5fe6d81749c7fef20688d787e6c93526796a3
- google-site-verification=NNfbCtQ1nbLpfi_Nzi5UuFdIIBHaUhUGaH5oS2I1Vlg
- SPFv=spf1 mx ip4:170.158.81.4 include:_spf.google.com include:customerspf.schoolmessenger.com include:mailgun.org ~all
- MS=F15E0A2E5FAA674D5BE5A7AA1C338F956DD5FB35
- apple-domain-verification=t2VGwanVF3hmsRcN
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for fmschools.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits