air-sys.com

Valid Email Server
Domain Lookup › air-sys.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
air-sys.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 04:33:57 UTC · ↺ Refresh

MX Hostnames

  • airsys-com0i.mail.protection.partner.outlook.cn

MX Priorities

  • airsys-com0i.mail.protection.partner.outlook.cn: 1

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 139.219.17.10 ↩ mail-bjschn020010.inbound.protection.outlook.com
  • 139.219.146.10 ↩ mail-sh0chn020010.inbound.protection.outlook.com
  • 2406:e500:4420:2::10 ↩ mail-sh0chn020010.inbound.protection.outlook.com
  • 2406:e500:4440:2::10 ↩ mail-bjschn020010.inbound.protection.outlook.com

SOA Record

Raw SOA dns17.hichina.com hostmaster.hichina.com 2026011209 3600 1200 86400 600
Primary NS (mname)
dns17.hichina.com
Admin Email (rname)
hostmaster@hichina.com
Serial
2026011209
Refresh
3600s
Retry
1200s
Expire
86400s
Minimum TTL
600s

Nameservers (NS)

dns17.hichina.com
dns18.hichina.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.partner.outlook.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

4 records
  • MS=5EB4172CC3EE91EF3819603B2E99F3F195325D66
  • MS=4642FA397E1A89FB81662A171D4D3D7E7BC90301
  • SPFv=spf1 include:spf.protection.partner.outlook.cn -all
  • MS=ms69981043
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