163 免费邮的一个发现

在东莞使用电信网络访问163免费邮。

通过地址mail.163.com 登录163免费邮。

成功登陆后将跳转到网页界面，地址如下：
http://cwebmail.mail.163.com/js4/main.jsp?

该链接访问较慢，解析发现是北京联通IP。ping过去延时100ms + ，还有丢包。
C:\>ping cwebmail.mail.163.com

Pinging cwebmail.mail.163.com [123.125.50.28] with 32 bytes of data:

Reply from 123.125.50.28: bytes=32 time=195ms TTL=51
Reply from 123.125.50.28: bytes=32 time=200ms TTL=51
Reply from 123.125.50.28: bytes=32 time=193ms TTL=51
Reply from 123.125.50.28: bytes=32 time=196ms TTL=51

Ping statistics for 123.125.50.28:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 193ms, Maximum = 200ms, Average = 196ms



因为刚申请163 免费邮时使用效果很好，访问很快。现在访问很慢，不能忍受，特别是使用客户端来接收邮件。也是因为使用客户端接收邮件才发现还有这样一个地址可以使用。

http://webmail.mail.163.com/js4/main.jsp?

对比之前的域名，这里少了一个“c”

C:\>ping webmail.mail.163.com

Pinging mailcache.mail.163.idns.yeah.net [220.181.12.209] with 32 bytes of data:

Reply from 220.181.12.209: bytes=32 time=37ms TTL=53
Reply from 220.181.12.209: bytes=32 time=38ms TTL=53
Reply from 220.181.12.209: bytes=32 time=43ms TTL=53
Reply from 220.181.12.209: bytes=32 time=37ms TTL=53

Ping statistics for 220.181.12.209:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 37ms, Maximum = 43ms, Average = 38ms

现在访问就快多了。

小小的改变，总能获取更好的体验。