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。
# 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
curl https://exampleconfig.com/api/v1/config/original/ca856d92fd47cc3031eb5d8d85842617?hint=main.cf.proto
wget -O main.cf.proto https://exampleconfig.com/api/v1/config/original/ca856d92fd47cc3031eb5d8d85842617?hint=main.cf.proto
<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。
sudo apk add postfix
sudo apt update && sudo apt install postfix
sudo yum install postfix
sudo apt update && sudo apt install postfix
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。