Postfix /etc/postfix/main.cf.proto

原始 📋 Debian 13 (Trixie) 72 行
/etc/postfix/main.cf.proto
# See /usr/share/postfix/main.cf.dist for a commented, more complete version

# See http://www.postfix.org/COMPATIBILITY_README.html
compatibility_level = 3.9

# Which domain that locally-originated mail appears to come from.
# Debian policy suggests to read this value from /etc/mailname.
#XX needs a review in postinst&config
#myorigin = /etc/mailname
#myorigin = $mydomain
myorigin = $myhostname

# Text that follows the 220 code in the SMTP server's greeting banner.
# You MUST specify $myhostname at the start due to an RFC requirement.
smtpd_banner = $myhostname ESMTP $mail_name (Debian)

# IP protocols to use: ipv4, ipv6, or all
# (set this explicitly so `post-install upgrade-configuration' wont complain)
inet_protocols = all

# List of "trusted" SMTP clients (maptype:mapname allowed) that have more
# privileges than "strangers".  If mynetworks is not specified (the default),
# mynetworks_style is used to compute its value.
#mynetworks_style = class
#mynetworks_style = subnet
mynetworks_style = host
#
mynetworks = 127.0.0.0/8

# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h

# List of domains (maptype:mapname allowed) that this machine considers
# itself the final destination for.
mydestination = $myhostname, localhost.$mydomain, localhost

# Maximum size of a user mailbox
mailbox_size_limit = 51200000

# Optional external command to use instead of mailbox delivery.  If set,
# you must set up an alias to forward root mail to a real user.
#mailbox_command = /usr/bin/procmail
#mailbox_command = /usr/bin/procmail -a "$EXTENSION"
mailbox_command =

# List of alias maps to use to lookup local addresses.
# Per Debian Policy it should be /etc/aliases.
alias_maps = $alias_database, nis:mail.aliases

# List of alias maps to make indexes on, when running newaliases.
alias_database = hash:/etc/aliases

# Notify (or not) local biff service when new mail arrives.
# Rarely used these days.
biff = no

# Separator between user name and address extension (user+foo@domain)
#recipient_delimiter = +
recipient_delimiter =

# A host to send "other" mail to
#relayhost = $mydomain
#relayhost = [gateway.example.com]
#relayhost = [ip.add.re.ss]:port
#relayhost = uucphost
relayhost =

# Where to look for Cyrus SASL configuration files.  Upstream default is unset
# (use compiled-in SASL library default), Debian Policy says it should be
# /etc/postfix/sasl.
cyrus_sasl_config_path = /etc/postfix/sasl

复制粘贴

curl:
curl https://exampleconfig.com/api/v1/config/original/ca856d92fd47cc3031eb5d8d85842617?hint=main.cf.proto
wget:
wget -O main.cf.proto https://exampleconfig.com/api/v1/config/original/ca856d92fd47cc3031eb5d8d85842617?hint=main.cf.proto

给 AI Agent 用

<prompt><role>DevOps agent</role><source url='https://exampleconfig.com/api/v1/config/original/ca856d92fd47cc3031eb5d8d85842617?hint=main.cf.proto' /><config><app>Postfix</app><os>Debian 13 (Trixie)</os><location>/etc/postfix/main.cf.proto</location><lines>72</lines><md5>ca856d92fd47cc3031eb5d8d85842617</md5><sha256>28f99356b7a3ba1f5376bf82016ae2049f3e629f172f684249d8990779a92c78</sha256></config></prompt>

粘贴到 Claude、ChatGPT 或任何 AI 助手里。

安装 Postfix

Alpine Linux

sudo apk add postfix

Debian

sudo apt update && sudo apt install postfix

Red Hat Enterprise Linux

sudo yum install postfix

Ubuntu

sudo apt update && sudo apt install postfix

文件位置

文件路径
/etc/postfix/main.cf.proto
目录
/etc/postfix/
用途
系统级配置目录
说明
/etc/ 里的文件是系统级配置,影响所有用户。

FAQ

什么时候该用这个 main.cf.proto?

用来恢复缺失的默认文件、确认发行版本带了什么,或拿你的 Postfix config 做 diff。

怎么恢复 Postfix 的默认配置?

下载文件,把 /etc/postfix/main.cf.proto 里的当前配置备份好,替换掉,然后 reload 或 restart Postfix。

main.cf.proto 适合直接上生产吗?

这是 Debian 13 (Trixie) 的厂商默认配置,只能当基线。上生产前请检查安全和性能设置。

和其他 OS 版本有什么不同?

默认值会随发行版和版本变化,这份对应 Debian 13 (Trixie)。

我可以用它来排查 Postfix 吗?

可以。和你的配置做 diff 找出漂移,然后只恢复需要的段落。