Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
brainstorm.academy
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 15:42:52 UTC · ↺ Refresh
MX Hostnames
- mx.sendgrid.net
- smtp.google.com
MX Priorities
- smtp.google.com: 1
- mx.sendgrid.net: 10
A / AAAA Records
- 76.76.21.21
Mail Server IPs
- 142.251.111.27 ↩ bk-in-f27.1e100.net
- 142.251.16.27 ↩ bl-in-f27.1e100.net
- 142.251.16.26 ↩ bl-in-f26.1e100.net
- 142.250.31.27 ↩ bj-in-f27.1e100.net
- 142.251.111.26 ↩ bk-in-f26.1e100.net
- 2607:f8b0:4004:c17::1b ↩ bl-in-f27.1e100.net
- 2607:f8b0:4004:c0b::1b ↩ bj-in-f27.1e100.net
- 2607:f8b0:4004:c19::1b ↩ bk-in-f27.1e100.net
- 2607:f8b0:4004:c19::1a ↩ bk-in-f26.1e100.net
- 18.224.101.244 ↩ ec2-18-224-101-244.us-east-2.compute.amazonaws.com
- 3.136.245.72
- 3.17.120.38
- 34.198.67.24
- 13.216.54.185
- 44.216.124.122
- 44.245.249.202
- 52.37.49.26
- 52.25.213.239
SOA Record
Raw SOA
ns-1304.awsdns-35.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1304.awsdns-35.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1873.awsdns-42.co.uk
ns-385.awsdns-48.com
ns-737.awsdns-28.net
ns-1304.awsdns-35.org
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.rdstation.com.br include:sendgrid.net include:mail.zendesk.com include:49278417.spf08.hubspotemail.net include:_spf.google.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
s1._domainkey
s2._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
1 record- SPFv=spf1 include:_spf.rdstation.com.br include:sendgrid.net include:mail.zendesk.com include:49278417.spf08.hubspotemail.net include:_spf.google.com ~all
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