postfix main.cf里面
# You can also specify the absolute pathname of a pattern file instead
# of listing the patterns here. Specify type:table for table-based lookups
# (the value on the table right-hand side is not used).
#
#mynetworks = 168.100.189.0/28, 127.0.0.0/8
(这个地方IP怎么修改呀?如果公司linux服务器IP地址是210.51.48.88 没明白这2个IP是什么意思!)
#mynetworks = $config_directory/mynetworks
#mynetworks = hash:/etc/postfix/network_table