Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tcse.us
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 21:09:58 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- alt2.aspmx.l.google.com
- aspmx3.googlemail.com
- aspmx2.googlemail.com
MX Priorities
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- alt1.aspmx.l.google.com: 5
A / AAAA Records
- 3.33.229.111 ↩ ac650dfa9279a781c.awsglobalaccelerator.com
- 15.197.251.173 ↩ ac650dfa9279a781c.awsglobalaccelerator.com
Mail Server IPs
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 192.178.155.26 ↩ yuiadrs-in-f26.1e100.net
- 2607:f8b0:4004:c07::1b ↩ bc-in-f27.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
SOA Record
Raw SOA
leonard.ns.cloudflare.com dns.cloudflare.com 2400030973 10000 2400 604800 1800
Primary NS (mname)
leonard.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400030973
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
leonard.ns.cloudflare.com
magdalena.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:customerspf.schoolmessenger.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 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
4 records- SPFv=spf1 include:_spf.google.com include:customerspf.schoolmessenger.com ~all
- MS=87682A3459F6688622703E7FBDACD99F189BD3F5
- MS=ms48613240
- apple-domain-verification=RCDIPSMBtFq8ZN4L
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