hworld.com

Valid Email Server
Domain Lookup › hworld.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
hworld.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 02:05:08 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 120.133.230.39 (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 vip3.alidns.com hostmaster.hichina.com 2026010711 3600 1200 86400 600
Primary NS (mname)
vip3.alidns.com
Admin Email (rname)
hostmaster@hichina.com
Serial
2026010711
Refresh
3600s
Retry
1200s
Expire
86400s
Minimum TTL
600s

Nameservers (NS)

vip3.alidns.com
vip4.alidns.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:203.94.24.162/27 ip4:103.61.36.18 ip4:101.231.139.0/24 ip4:218.83.157.4/27 ip4:58.246.134.163/29 ip4:112.65.142.18/28 ip4:58.246.6.122/29 ip4:112.64.157.57/30 ip4:117.185.44.98/30 ip4:120.133.230.2/26 ip4:101.231.138.0/27 ip4:103.220.8.115/32 ip4:117.131.83.86/32 ip4:211.95.122.165/32 include:_netblocks.m.feishu.cn -all
📊 DNS lookups: 1/10
✓ 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

2 records
  • verification-code-site-App_feishu=jUvbtW1KVGmHGAnNAZK7
  • SPFv=spf1 ip4:203.94.24.162/27 ip4:103.61.36.18 ip4:101.231.139.0/24 ip4:218.83.157.4/27 ip4:58.246.134.163/29 ip4:112.65.142.18/28 ip4:58.246.6.122/29 ip4:112.64.157.57/30 ip4:117.185.44.98/30 ip4:120.133.230.2/26 ip4:101.231.138.0/27 ip4:103.220.8.115/32 ip4:117.131.83.86/32 ip4:211.95.122.165/32 include:_netblocks.m.feishu.cn -all
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