不会看mx记录，请大哥帮忙解释一下

htshi926

这是我们公司我在公司内部看出来的记录<br>
htsemi.com MX preference = 10, mail exchanger = shsmtp.htsemi.com<br>
htsemi.com MX preference = 5, mail exchanger = tpex01.htsemi.com<br>
shsmtp.htsemi.com internet address = 192.168.10.129<br>
tpex01.htsemi.com internet address = 192.168.2.5<br>
这是yhhoo的记录<br>
yahoo.com MX preference = 5, mail exchanger = mx4.mail.yahoo.com<br>
yahoo.com MX preference = 1, mail exchanger = mx1.mail.yahoo.com<br>
yahoo.com MX preference = 1, mail exchanger = mx2.mail.yahoo.com<br>
yahoo.com MX preference = 1, mail exchanger = mx3.mail.yahoo.com<br>
<br>
mx4.mail.yahoo.com internet address = 68.142.202.12<br>
mx4.mail.yahoo.com internet address = 66.218.86.156<br>
mx4.mail.yahoo.com internet address = 67.28.113.19<br>
mx4.mail.yahoo.com internet address = 68.142.202.11请问这2者有什么区别呀？<br>
<br>
麻烦大哥大姐给我解释一下，或者给我些资料看看。<br>
我们公司的邮件按照我理解先应该到tpex01.htsemi.com<br>
因为他们mx preference的优先级比较高。<br>
那么ｙａｈｏｏ．ｃｏｍ它有‘好几个MX preference = 1　它的邮件是怎么走的啊？<br>
<br>
<br>
<img src="../leadbbsfile/UBBicon/em07.GIF" width=20 height=20 align=absmiddle border=0><img src="../leadbbsfile/UBBicon/em06.GIF" width=20 height=20 align=absmiddle border=0>

Ronaldo

象这样大的ISP商的邮件基本上都是很多邮件服务器组成的,都是拉着一个集群在跑,试用负载均衡,这样才能保证在用户过多的时候造成一两台服务器的网络堵塞.

htshi926

thank you <br>
very much