Domain Overview
DNS: ✓ 20d ago
Checker: ✓ 20d ago
polymathventures.co
Disposable
✓ Yes
Google
⚠ Yes
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 06:07:59 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
- alt2.aspmx.l.google.com
- alt1.aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 1
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
A / AAAA Records
- 54.215.31.113 ↩ ec2-54-215-31-113.us-west-1.compute.amazonaws.com
Mail Server IPs
- 142.251.179.27 ↩ pd-in-f27.1e100.net
- 2607:f8b0:4004:c07::1b ↩ bc-in-f27.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
SOA Record
Raw SOA
ns1.dyna-ns.net hostmaster.polymathventures.co 2026040802 16384 2048 1209600 300
Primary NS (mname)
ns1.dyna-ns.net
Admin Email (rname)
hostmaster@polymathventures.co
Serial
2026040802
Refresh
16384s
Retry
2048s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns1.dyna-ns.net
ns2.dyna-ns.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:mailgun.org ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 3 found
google._domainkey
s1._domainkey
s2._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
4 records- google-site-verification=6ir-W8NLEgFgs2A6cF3v-Gzux5VUDt3QxMX2QApyX8U
- google-site-verification=uwDvjOlkWFq4QMV_-ETjQg__NxgqBp8z6dANesFmG1U
- SPFv=spf1 include:_spf.google.com include:mailgun.org ~all
- MS=85E12BB03D1B54DF0194960EADFDDABCC2A03235
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