nsmc.edu.cn

Email infrastructure report · Last checked 28 Jul 2026, 22:06 UTC

Summary

nsmc.edu.cn uses Self-hosted / Custom for email and has SPF and DMARC configured. It is not catch-all.

Mail provider

ProviderSelf-hosted / Custom self-hosted

Primary MXmx3.qiye.aliyun.com

MX records

Priority	Hostname	IPs
5	mx3.qiye.aliyun.com	47.246.146.58, 47.246.146.255
5	mx1.qiye.aliyun.com	47.246.146.58
5	mx2.qiye.aliyun.com	47.246.146.255

Authentication

SPF✓ Present -all

DKIM? Not detected via common selectors

DMARC✓ Present p=quarantine

Raw SPF record

v=spf1 include:spf.qiye.aliyun.com -all

Raw DMARC record

v=DMARC1; p=quarantine; rua=mailto:lt@nsmc.edu.cn; ruf=mailto:lt@nsmc.edu.cn

Email behavior

Catch-all✗ No

Disposable✗ No

Free provider✗ No

STARTTLS✓ Supported

SMTP response646ms

SMTP banner220 mx1.aliyun-inc.com MX AliMail Server

What this means

This domain is missing DKIM, which weakens its protection against email spoofing. Adding this record would improve deliverability and reduce the risk of impersonation.

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