VPN Detection Test
Disposable Email Detection
Pricing
smtp.21vianet.com
Host
Host Information
Parent Domain
A Record
59.151.19.91
106.120.80.109
CNAME Record
smtp.21vianet.com
TXT Record
v=spf1 ip4:59.151.19.91 ip4:106.120.80.109 -all
SPF Record
59.151.19.91
106.120.80.109