221.4.135.40 — Shenzhen, Guangdong, 🇨🇳 China · AS17816 CHINA169-GZ

A record for

`hongdatelecom.cn`
	A	221.4.135.40
`mail.hongdatelecom.cn`
	A	221.4.135.40
`mail.21samg.com`
	A	221.4.135.40
`mail.gd-hd.com`
	A	221.4.135.40

Previously A record for

mail.dgmq.com

🛡️Is this IP blacklisted?Check against 50+ spam databases→🌐221.4.0.0/1666K IPs · AS17816 CHINA169-GZ→🔧AS17816CHINA169-GZ autonomous system→

Shenzhen, Guangdong, 🇨🇳 China

^{🇨🇳 CHINA169-GZ221.4.0.0/16 CNC Group CHINA169 Guangdong Province Network}

221.4.135.40 Shenzhen, Guangdong, 🇨🇳 China Courtesy of