我正在尝试设置 postfix，但出现“临时查找失败”错误
主要.cf：
inet_protocols = ipv4
inet_interfaces = all
queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/lib/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
myhostname = ns0.dzervas.gr
mydomain = dzervas.gr
myorigin = dzervas.gr
mynetworks_style = host
mydestination = localhost, localhost.$mydomain, $myhostname, $mydomain, mail.$mydomain, www.$mydomain
virtual_mailbox_base = /var/mail/vhost
virtual_mailbox_maps = hash:/etc/postfix/vmailbox
virtual_minimum_uid = 1000
virtual_uid_maps = static:2000
virtual_gid_maps = static:2000
virtual_alias_maps = hash:/etc/postfix/valias
smtp_generic_maps = hash:/etc/postfix/generic
虚拟邮箱：
dzervas@dzervas.gr dzervas.gr/dzervas
dna@dzervas.gr dzervas.gr/dna
dzervas@ns0.dzervas.gr ns0.dzervas.gr/dzervas
瓦利亚斯：
webmaster@dzervas.gr dzervas@dzervas.gr
hostmaster@dzervas.gr dzervas@dzervas.gr
postmaster@dzervas.gr dzervas@dzervas.gr
#dzervas@ns0.dzervas.gr …