indexo.dev

mail-189.com

.com crawl

First seen 2026-04-25 · Last seen 2026-05-18 · ok HTTP/1.1 200 2909 ms crawled 2026-05-18

CN · 47.100.62.255 · AS37963 Hangzhou Alibaba Advertising Co.,Ltd.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
企业邮箱|企业邮箱申请|企业邮箱注册-中国电信企业安全邮箱服务网
Description
中国电信企业邮箱产品安全稳定，海外邮件畅通，支持多终端设备一体化办公。产品荣获国内外多项安全认证，守护全链路数据安全！
Language
en

Technology

Server
Microsoft-IIS

Contact

Email
Phone

Registration

Registrar
Xin Net Technology Corporation
Created
2022-09-21
Expires
2026-09-21 124 days left
Updated
2023-12-26
Name servers
  • ns11.xincache.com
  • ns12.xincache.com

DNS records live

NS
  • ns11.xincache.com
  • ns12.xincache.com
MX
  • 10 mailcdn.21cn.com
  • 5 mta-ent.21cn.com

Email authentication weak

SPF
v=spf1 include:corp.21cn.com. -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

XinNet DV TLS CA
from 2025-09-01 to 2026-09-01
Expires in 105 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://mail-189.com/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (1)

Linked from (5)