stacklet.io

Valid Email Server
Domain Lookup › stacklet.io

Domain Overview

DNS: ✓ 4d ago Checker: ✓ 4d ago
stacklet.io
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 06:23:55 UTC · ↺ Refresh

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MX Hostnames

  • alt3.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • bmnpkupzzt7a4g3razlqym47fafeq6bqfyahrj7znivjm2v6jusa.mx-verification.google.com

MX Priorities

  • alt3.aspmx.l.google.com: 10
  • alt4.aspmx.l.google.com: 10
  • bmnpkupzzt7a4g3razlqym47fafeq6bqfyahrj7znivjm2v6jusa.mx-verification.google.com: 15
  • alt1.aspmx.l.google.com: 5
  • alt2.aspmx.l.google.com: 5
  • aspmx.l.google.com: 1

A / AAAA Records

  • 141.193.213.11 (no PTR)
  • 141.193.213.10 (no PTR)

Mail Server IPs

  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
  • 108.177.123.26 ↩ lcscld-in-f26.1e100.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

SOA Record

Raw SOA ns-254.awsdns-31.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-254.awsdns-31.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-254.awsdns-31.com
ns-965.awsdns-56.net
ns-1216.awsdns-24.org
ns-1882.awsdns-43.co.uk

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.google.com include:8910378.spf05.hubspotemail.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · 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

9 records
  • mgverify=04c26a44f1c01893663b16bc6c9882093cdc6a2e1ccf9f3155593ec8515a62a9
  • openai-domain-verification=dv-LPFGMfspeGxXPmFKi2MAnKJL
  • SPFv=spf1 include:_spf.google.com include:8910378.spf05.hubspotemail.net -all
  • MS=ms97711610
  • anthropic-domain-verification-cmxfzs=LHxoPhKqZXM7p48DKivd8KxXU
  • apple-domain-verification=a1YVLoZfuoWvTyzh
  • cursor-domain-verification-tf5a3w=eai5z4WjixAkS0YvWwlXy0e2N
  • google-site-verification=DrXrHHJSI54-H6YkW6dxTOcUlINL03Fo-jtTPu-MaD8
  • google-site-verification=L9KOJLhYVOX4TNBDPYH0fzcRqRNv_u6dp1CD2gjz__4
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