# Things that depend on the operating system have default settings in
# OS/Makefile-Default, but these are overridden for some OS by files
-# called called OS/Makefile-<osname>. You can further override these by
-# creating files called Local/Makefile-<osname>, and
-# Local/Makefile-<buildname> (where "<osname>" stands for the name of
-# your operating system - look at the names in the OS directory to see
-# which names are recognized, and "<buildname>" is derived from the
-# environment variable "build")
+# called OS/Makefile-<osname>. You can further override these settings by
+# creating files Local/Makefile-<osname>, and Local/Makefile-<build>.
+# The suffix "<osname>" stands for the name of your operating system - look
+# at the names in the OS directory to see which names are recognized,
+# and "<build>" is the content of the environment variable "build".
# However, if you are building Exim for a single OS only, you don't need to
# worry about setting up Local/Makefile-<osname>. Any build-time configuration
# the libraries and headers are installed, as the pkg-config .pc
# specification should include all -L/-I information necessary.
# Enabling the USE_*_PC options should be sufficient. If not using
-# pkg-config, then you have to specify the libraries, and you mmight
+# pkg-config, then you have to specify the libraries, and you might
# need to specify the locations too.
# Uncomment the following lines if you want
# Unless you do this, you must define one of USE_OPENSSL or USE_GNUTLS
# below.
-# If you are buliding with TLS, the library configuration must be done:
+# If you are building with TLS, the library configuration must be done:
# Uncomment this if you are using OpenSSL
# USE_OPENSSL=yes
# DISABLE_EVENT=yes
-# Uncomment this line to include support for early pipelining, per
+# Uncomment this line to remove support for early pipelining, per
# https://datatracker.ietf.org/doc/draft-harris-early-pipe/
-# SUPPORT_PIPE_CONNECT=yes
+# DISABLE_PIPE_CONNECT=yes
# Uncomment the following to remove the fast-ramp two-phase-queue-run support
# Uncomment the following line to add DMARC checking capability, implemented
# using libopendmarc libraries. You must have SPF and DKIM support enabled also.
+# Library version libopendmarc-1.4.1-1.fc33.x86_64 (on Fedora 33) is known broken;
+# 1.3.2-3 works. I seems that the OpenDMARC project broke their API.
# SUPPORT_DMARC=yes
# CFLAGS += -I/usr/local/include
# LDFLAGS += -lopendmarc
# WHITELIST_D_MACROS=TLS:SPOOL
+# The next setting enables a main config option
+# "allow_insecure_tainted_data" to turn taint failures into warnings.
+# Though this option is new, it is deprecated already now, and will be
+# ignored in future releases of Exim. It is meant as mitigation for
+# upgrading old (possibly insecure) configurations to more secure ones.
+ALLOW_INSECURE_TAINTED_DATA=yes
+
#------------------------------------------------------------------------------
# Exim has support for the AUTH (authentication) extension of the SMTP
# protocol, as defined by RFC 2554. If you don't know what SMTP authentication