usd437.net

Valid Email Server

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
usd437.net
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 14:13:29 UTC · ↺ Refresh

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MX Hostnames

  • alt2.aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • aspmx.l.google.com

MX Priorities

  • alt4.aspmx.l.google.com: 10
  • alt1.aspmx.l.google.com: 5
  • alt2.aspmx.l.google.com: 5
  • aspmx.l.google.com: 1
  • alt3.aspmx.l.google.com: 10

A / AAAA Records

  • 70.166.229.29

Mail Server IPs

  • 173.194.76.27 ↩ ws-in-f27.1e100.net
  • 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 64.233.180.27 ↩ on-in-f27.1e100.net
  • 2607:f8b0:4004:c23::1a ↩ yuiadrs-in-f26.1e100.net
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net

SOA Record

Raw SOA ns11.cloud.ppi.net dns.penpublishing.com 2 7200 900 1209600 86400
Primary NS (mname)
ns11.cloud.ppi.net
Admin Email (rname)
dns@penpublishing.com
Serial
2
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns33.cloud.ppi.net
ns11.cloud.ppi.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com ip4:70.166.229.7 ip4:70.166.229.13 ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; adkim=r; aspf=r; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
google._domainkey
default._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

11 records
  • docusign=77646748-b35a-45dd-9093-f8fa152f8477
  • google-site-verification=BzNKRkwRBYcg7oFnQUXfsai6G7FMaocIPaFwGqJ4VB4
  • google-site-verification=_ZEuOD_dNwuGDwZoJOjhEmJ9v4Jmu_C0ohMkHVoD4LI
  • google-site-verification=yncNqGlj97ZoLvYcIWunFbS0zeRypFz5P1EszOK86Jw
  • SPFv=spf1 include:_spf.google.com ip4:70.166.229.7 ip4:70.166.229.13 ~all
  • workplace-domain-verification= 97c4d08e-8a0e-4bd3-b5bc-1ea5573498a7
  • 8c0210382083b8c77c4be61c6e46475d
  • MS=E26DCEF0665EBFA86A99D56C11D42343A6D0AA1B
  • adobe-idp-site-verification=6a4303ee5fece0ad6acc771a61a2affe3c8c79282b76f1bfdf86ee7bbd50fcd7
  • apple-domain-verification=KvuxBUsEIC15bctF
  • autodesk-domain-verification=GpAgjv6ulYhqF1UZWLwN
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