Domain Overview
DNS: ✓ 9h ago
Checker: ✓ 9h ago
ruijie.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-07-02 11:18:44 UTC · ↺ Refresh
MX Hostnames
- mx2.feishu.cn
- mx3.feishu.cn
- mx1.feishu.cn
MX Priorities
- mx1.feishu.cn: 10
- mx2.feishu.cn: 20
- mx3.feishu.cn: 30
A / AAAA Records
- 43.134.55.152 (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 2025121107 3600 1200 86400 600
Primary NS (mname)
vip3.alidns.com
Admin Email (rname)
hostmaster@hichina.com
Serial
2025121107
Refresh
3600s
Retry
1200s
Expire
86400s
Minimum TTL
600s
Nameservers (NS)
vip4.alidns.com
vip3.alidns.com
SPF Record
✓ Strict (-all)
v=spf1 include:_netblocks.m.feishu.cn include:eu.zcsend.net include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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- MS=ms71426224
- SPFv=spf1 include:_netblocks.m.feishu.cn include:eu.zcsend.net include:spf.protection.outlook.com -all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for ruijie.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits