那天刚出来的时候我在隔壁站写了个帖子,介绍了一下国内各厂商的发信情况,具体如下。不建议使用。
各厂商的发信 IPv4 数量,以 /24 为单位:
QQ: 41 个
163 (网易):19 个
Gmail: 1285 个
阿里云: 7 个
88.com: 1 个
国内邮箱里面,QQ 是当之无愧的老大。当然,和谷歌 /微软这些都没法比。
QQ: (203.205.251.0/24 103.7.29.0/24 59.36.129.0/24 113.108.23.0/24 113.108.11.0/24 119.147.193.0/24 119.147.194.0/24 59.78.209.0/24 113.96.223.0/24 183.3.226.0/24 183.3.255.0/24 59.36.132.0/24
59.36.128.0/24 14.17.43.0/24 14.17.44.0/24 14.17.21.0/24 183.60.52.0/24 183.60.61.0/24 183.60.8.0/24 183.62.104.0/24 184.105.206.0/24 184.105.67.0/24 203.205.160.0/24 58.250.132.0/24 54.204.34.129 54.204.34.130 54.243.244.52 54.254.200.92 54.254.200.128 54.179.177.220 54.238.142.250 54.92.39.34 54.206.16.166 54.206.34.216 54.207.19.206 58.250.134.0/24 54.207.22.56 52.59.177.22 18.194.254.142 52.205.10.60 35.173.142.173 203.205.176.0/24 14.215.153.0/24 14.215.154.0/24 14.215.155.0/24 183.61.51.0/24 183.61.52.0/24 163.177.87.0/24 220.249.245.0/24 203.205.250.0/24 203.205.195.0/24 180.163.24.128/25 121.51.40.128/25 58.246.222.128/25 58.250.143.128/25 121.51.6.0/25 183.2.187.0/25 203.205.140.128/25 203.205.210.0/25 203.205.146.128/25 203.205.249.0/24 203.205.221.0/24)
163: (220.181.12.0/22 220.181.31.0/24 123.125.50.0/24 220.181.72.0/24 123.58.178.0/24 123.58.177.0/24 113.108.225.0/24 218.107.63.0/24 123.58.189.128/25 123.126.96.0/24 123.126.97.0/24
52.31.100.154 52.19.67.100 176.34.21.58 121.195.178.48/28 223.252.213.0/24 113.108.226.64/26 58.248.244.64/26
223.252.206.0/24 14.29.82.0/25 122.13.158.0/25 35.154.184.19 35.158.20.192 52.198.69.159 52.221.130.187 52.56.66.10 54.219.167.112 103.129.252.0/26 60.191.83.0/24
115.236.127.0/24 123.126.65.0/24 220.181.97.0/24 180.150.142.123 180.150.142.124 180.150.154.88 180.150.154.92 180.150.154.93 59.111.176.0/24 220.194.24.0/24 52.52.2.81) 外加 4 个 /64 IPv6 (这里科普一下,发信服务器的 IPv6 最小单位是 /64, 一个 /64 IPv6 相当于一个 /32 IPv4)
Gmail: (35.190.247.0/24 64.233.160.0/19 66.102.0.0/20 66.249.80.0/20 72.14.192.0/18 74.125.0.0/16 108.177.8.0/21 173.194.0.0/16 209.85.128.0/17 216.58.192.0/19 216.239.32.0/19
172.217.0.0/19 172.217.32.0/20 172.217.128.0/19 172.217.160.0/20 172.217.192.0/19 172.253.56.0/21 172.253.112.0/20 108.177.96.0/19 35.191.0.0/16 130.211.0.0/22) 外加 6 个 /36 IPv6
Aliyun: 115.124.30.0/24 121.0.18.0/23 121.0.30.0/24 42.120.70.0/23 47.88.44.32/27 59.82.0.0/24
88.com: (43.250.32.0/24)