When should I use this makedefs.out?
Restore it. Compare it. Start clean.
curl https://exampleconfig.com/api/v1/config/original/093b260e83df6f33fd9d3a71de52b30e?hint=makedefs.out
wget -O makedefs.out https://exampleconfig.com/api/v1/config/original/093b260e83df6f33fd9d3a71de52b30e?hint=makedefs.out
You are a DevOps agent. Fetch the default Postfix config for Debian 9 (Stretch) from https://exampleconfig.com/api/v1/config/original/093b260e83df6f33fd9d3a71de52b30e?hint=makedefs.out. Compare with my current /etc/postfix/makedefs.out and summarize differences and safe changes.
Copy this prompt into Claude, ChatGPT, or other AI assistants.
# Do not edit -- this file documents how Postfix was built for your machine.
#----------------------------------------------------------------
# Start of summary of user-configurable 'make makefiles' options.
# CCARGS=-DDEBIAN -DHAS_PCRE -DHAS_LDAP -DUSE_LDAP_SASL -DHAS_SQLITE -DMYORIGIN_FROM_FILE -DHAS_CDB -DHAS_LMDB -DHAS_MYSQL -I/usr/include/mysql -DHAS_PGSQL -I/usr/include/postgresql -DHAS_SQLITE -I/usr/include -DHAS_SSL -I/usr/include/openssl -DUSE_SASL_AUTH -I/usr/include/sasl -DUSE_CYRUS_SASL -DUSE_TLS
# AUXLIBS=-lssl -lcrypto -lsasl2 -lpthread -L/build/postfix-Z2vR6d/postfix-3.1.15/debian
# AUXLIBS_CDB=-lcdb -L../../lib -L. -lpostfix-util
# AUXLIBS_LMDB=-llmdb -L../../lib -L. -lpostfix-util
# AUXLIBS_MYSQL=-lmysqlclient -L../../lib -L. -lpostfix-util -lpostfix-global
# AUXLIBS_LDAP=-lldap -llber -L../../lib -L. -lpostfix-util -lpostfix-global
# AUXLIBS_PCRE=-lpcre -L../../lib -L. -lpostfix-util
# AUXLIBS_SQLITE=-lsqlite3 -L../../lib -L. -lpostfix-util -lpostfix-global -lpthread
# AUXLIBS_PGSQL=-lpq -L../../lib -L. -lpostfix-util -lpostfix-global
# shared=yes
# dynamicmaps=yes
# pie=yes
# daemon_directory=/usr/lib/postfix/sbin
# html_directory=/usr/share/doc/postfix/html
# manpage_directory=/usr/share/man
# readme_directory=/usr/share/doc/postfix
# End of summary of user-configurable 'make makefiles' options.
#--------------------------------------------------------------
# System-dependent settings and compiler/linker overrides.
SYSTYPE = LINUX4
_AR = ar
ARFL = rv
_RANLIB = ranlib
SYSLIBS = -pie -z relro -z now -lssl -lcrypto -lsasl2 -lpthread -L/build/postfix-Z2vR6d/postfix-3.1.15/debian -ldb -lnsl -lresolv -ldl -L/usr/lib/x86_64-linux-gnu -licui18n -licuuc -licudata
AUXLIBS_CDB = -lcdb -L../../lib -L. -lpostfix-util
AUXLIBS_LDAP = -lldap -llber -L../../lib -L. -lpostfix-util -lpostfix-global
AUXLIBS_LMDB = -llmdb -L../../lib -L. -lpostfix-util
AUXLIBS_MYSQL = -lmysqlclient -L../../lib -L. -lpostfix-util -lpostfix-global
AUXLIBS_PCRE = -lpcre -L../../lib -L. -lpostfix-util
AUXLIBS_PGSQL = -lpq -L../../lib -L. -lpostfix-util -lpostfix-global
AUXLIBS_SQLITE = -lsqlite3 -L../../lib -L. -lpostfix-util -lpostfix-global -lpthread
CC = gcc -fPIC -I. -I../../include -DDEBIAN -DHAS_PCRE -DHAS_LDAP -DUSE_LDAP_SASL -DHAS_SQLITE -DMYORIGIN_FROM_FILE -DHAS_CDB -DHAS_LMDB -DHAS_MYSQL -I/usr/include/mysql -DHAS_PGSQL -I/usr/include/postgresql -DHAS_SQLITE -I/usr/include -DHAS_SSL -I/usr/include/openssl -DUSE_SASL_AUTH -I/usr/include/sasl -DUSE_CYRUS_SASL -DUSE_TLS -I/usr/include -DHAS_DEV_URANDOM -DDEF_DAEMON_DIR=\"/usr/lib/postfix/sbin\" -DDEF_HTML_DIR=\"/usr/share/doc/postfix/html\" -DDEF_MANPAGE_DIR=\"/usr/share/man\" -DDEF_README_DIR=\"/usr/share/doc/postfix\" -DUSE_DYNAMIC_LIBS -DUSE_DYNAMIC_MAPS $(WARN)
OPT = -O2
DEBUG =
AWK = awk
STRCASE =
EXPORT = CCARGS='-I. -I../../include -DDEBIAN -DHAS_PCRE -DHAS_LDAP -DUSE_LDAP_SASL -DHAS_SQLITE -DMYORIGIN_FROM_FILE -DHAS_CDB -DHAS_LMDB -DHAS_MYSQL -I/usr/include/mysql -DHAS_PGSQL -I/usr/include/postgresql -DHAS_SQLITE -I/usr/include -DHAS_SSL -I/usr/include/openssl -DUSE_SASL_AUTH -I/usr/include/sasl -DUSE_CYRUS_SASL -DUSE_TLS -I/usr/include -DHAS_DEV_URANDOM -DDEF_DAEMON_DIR=\"/usr/lib/postfix/sbin\" -DDEF_HTML_DIR=\"/usr/share/doc/postfix/html\" -DDEF_MANPAGE_DIR=\"/usr/share/man\" -DDEF_README_DIR=\"/usr/share/doc/postfix\" -DUSE_DYNAMIC_LIBS -DUSE_DYNAMIC_MAPS' OPT='-O2' DEBUG=''
WARN = -Wall -Wno-comment -Wformat -Wimplicit -Wmissing-prototypes \
-Wparentheses -Wstrict-prototypes -Wswitch -Wuninitialized \
-Wunused -Wno-missing-braces
DEFINED_MAP_TYPES = pcre ldap sqlite cdb lmdb mysql pgsql ssl dev_urandom
MAKE_FIX =
# Switch between Postfix static and dynamically-linked libraries.
AR = :
RANLIB = :
LIB_PREFIX = postfix-
LIB_SUFFIX = .so
SHLIB_CFLAGS = -fPIC
SHLIB_DIR = /usr/lib/postfix
SHLIB_ENV = LD_LIBRARY_PATH=/build/postfix-Z2vR6d/postfix-3.1.15/lib
SHLIB_LD = gcc -shared -Wl,-soname,${LIB}
SHLIB_SYSLIBS = -lssl -lcrypto -lsasl2 -lpthread -L/build/postfix-Z2vR6d/postfix-3.1.15/debian -ldb -lnsl -lresolv -ldl -L/usr/lib/x86_64-linux-gnu -licui18n -licuuc -licudata
SHLIB_RPATH = -Wl,--enable-new-dtags -Wl,-rpath,${SHLIB_DIR}
# Switch between dynamicmaps.cf plugins and hard-linked databases.
NON_PLUGIN_MAP_OBJ =
PLUGIN_MAP_OBJ = $(MAP_OBJ)
PLUGIN_MAP_OBJ_UPDATE = plugin_map_obj_update
PLUGIN_MAP_SO_MAKE = plugin_map_so_make
PLUGIN_MAP_SO_UPDATE = plugin_map_so_update
PLUGIN_LD = gcc -shared
# Application-specific rules.
sudo apk add postfix
sudo apt update && sudo apt install postfix
sudo yum install postfix
sudo apt update && sudo apt install postfix
When should I use this makedefs.out?
Restore it. Compare it. Start clean.
How do I restore Postfix defaults?
Download, replace, restart.
Is makedefs.out safe for production?
Yes. This is exactly what shipped. Safe starting point.
How does this differ from other OS versions?
Defaults change. This one is specific to Debian 9 (Stretch).
Can I use this for Postfix troubleshooting?
Absolutely. Diff this against yours to spot the problem.