不带域/主机名的Posfix设置

Question

# INTERNET HOST AND DOMAIN NAMES
#
# The myhostname parameter specifies the internet hostname of this
# mail system. The default is to use the fully-qualified domain name
# from gethostname(). $myhostname is used as a default value for many
# other configuration parameters.
#
myhostname =   
#myhostname =

# The mydomain parameter specifies the local internet domain name.
# The default is to use $myhostname minus the first component.
# $mydomain is used as a default value for many other configuration
# parameters.
#
mydomain =     
# SENDING MAIL
#
# The myorigin parameter specifies the domain that locally-posted
# mail appears to come from. The default is to append $myhostname,
# which is fine for small sites.  If you run a domain with multiple
# machines, you should (1) change this to $mydomain and (2) set up
# a domain-wide alias database that aliases each user to
# [e-mail].
#
# For the sake of consistency between sender and recipient addresses,
# myorigin also specifies the default domain name that is appended
# to recipient addresses that have no @domain part.
#
#myorigin = $myhostname
myorigin = $mydomain

您可能已经注意到，myhostname&mydomain字段都为空。原因是，服务器实际上没有域或主机名。在这种情况下我该怎么办？

我有一个M记录指向mail.my-domain.tld和MX记录指向mail.my-domain.tld

我可以在main.cf中使用mail.my-domain.tld作为mydomain=和myhostname=吗？因为my-domain.tld指向另一个具有另一个IP的VPS，它只负责web托管。

Answer 1

• myhostname-此邮件系统的internet主机名。在这里使用mail.my-domain.tld
• mydomain-此邮件系统的internet域名。默认情况是使用$myhostname减去第一个组件。$mydomain用作许多其他配置参数的默认值。所以在这里使用my-domain.tld

这个VPS（邮件服务器）可以只为您的邮件流量服务，正如您所说的，您的my-domain.tld网络托管可以在不同的VPS服务器中。

希望能有所帮助。