seirobotics.net

Valid Email Server
Domain Lookup › seirobotics.net

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
seirobotics.net
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 13:50:02 UTC · ↺ Refresh

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MX Hostnames

  • mx1.feishu.cn
  • mx2.feishu.cn
  • mx3.feishu.cn

MX Priorities

  • mx1.feishu.cn: 1
  • mx2.feishu.cn: 5
  • mx3.feishu.cn: 10

A / AAAA Records

  • 8.210.79.138 (no PTR)

Mail Server IPs

  • 52.220.106.220 ↩ ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com
  • 101.126.58.225 (no PTR)
  • 122.14.229.0 (no PTR)

SOA Record

Raw SOA vip1.alidns.com hostmaster.hichina.com 2025121107 3600 1200 86400 600
Primary NS (mname)
vip1.alidns.com
Admin Email (rname)
hostmaster@hichina.com
Serial
2025121107
Refresh
3600s
Retry
1200s
Expire
86400s
Minimum TTL
600s

Nameservers (NS)

vip2.alidns.com
vip1.alidns.com

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.google.com include:_netblocks.m.feishu.cn include:242584802.spf10.hubspotemail.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

9 records
  • SPFv=spf1 include:_spf.google.com include:_netblocks.m.feishu.cn include:242584802.spf10.hubspotemail.net -all
  • apple-domain-verification=jepgsC4eyfJfDgVt
  • verification-code-site-App_feishu=U5jP5yY2looDVhb8R8Cb
  • atlassian-domain-verification=ELxwgdAvPa1cwmuthmlr2QGIWi1bjDMRGelq3V2iFU5arfHj/0Wei2MBaOtWXgcI
  • verification-code-site-App_feishu=aqRrfTk0w6M0F5zNZphA
  • openai-domain-verification=dv-DM6z9NKgbwiNhGuRdDkER0iF
  • aliyun-site-verification=7eb4b80b-cd73-4b4b-bc64-e6baaf9b6cb2
  • MS=ms24054633
  • MS=ms20190346
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