请问在freebsd中如何使用mail程序？

icybird_r

比如我mail -v  pp@sohu.com
它只是连到我系统里面，而不是去连sohu上的
WARNING: local host name (frame) is not qualified; fix $j in config file
popboyone@sohu.com... Connecting to [127.0.0.1] via relay...
popboyone@sohu.com... Deferred: Connection refused by [127.0.0.1]

root也连不上去

xx_xx

man mail