# Uncomment the following line to add DANE support
# Note: Enabling this unconditionally overrides DISABLE_DNSSEC
+# Note: DANE is only supported when using OpenSSL
# EXPERIMENTAL_DANE=yes
# Uncomment the following to include extra information in fail DSN message (bounces)
# EXPERIMENTAL_DSN_INFO=yes
+# Uncomment the following to add LMDB lookup support
+# You need to have LMDB installed on your system (https://github.com/LMDB/lmdb)
+# Depending on where it is installed you may have to edit the CFLAGS and LDFLAGS lines.
+# EXPERIMENTAL_LMDB=yes
+# CFLAGS += -I/usr/local/include
+# LDFLAGS += -llmdb
+
+# Uncomment the following line to add queuefile transport support
+# EXPERIMENTAL_QUEUEFILE=yes
+
###############################################################################
# THESE ARE THINGS YOU MIGHT WANT TO SPECIFY #
###############################################################################
# USE_GNUTLS_PC=gnutls
# TLS_LIBS=-lgnutls -ltasn1 -lgcrypt
+# If using GnuTLS older than 2.10 and using pkg-config then note that Exim's
+# build process will require libgcrypt-config to exist in your $PATH. A
+# version that old is likely to become unsupported by Exim in 2017.
+
# The security fix we provide with the gnutls_allow_auto_pkcs11 option
# (4.82 PP/09) introduces a compatibility regression. The symbol is
# not available if GnuTLS is build without p11-kit (--without-p11-kit