X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/c0635b6dfe65ee24c2fb8d165beabc608d2fd1a5..8ac90765750f87c573300b9e953af3d8090cab8b:/src/src/EDITME

diff --git a/src/src/EDITME b/src/src/EDITME
index b1b9af2c6..cbb080545 100644
--- a/src/src/EDITME
+++ b/src/src/EDITME
@@ -479,12 +479,16 @@ DISABLE_MAL_MKS=yes
 # LDFLAGS += -lsrs_alt
 
 # Uncomment the following line to add DMARC checking capability, implemented
-# using libopendmarc libraries.  You must have SPF support enabled also.
+# using libopendmarc libraries. You must have SPF and DKIM support enabled also.
 # EXPERIMENTAL_DMARC=yes
 # DMARC_TLD_FILE= /etc/exim/opendmarc.tlds
 # CFLAGS += -I/usr/local/include
 # LDFLAGS += -lopendmarc
 
+# Uncomment the following line to add ARC (Authenticated Received Chain)
+# support.  You must have SPF and DKIM support enabled also.
+# EXPERIMENTAL_ARC=yes
+
 # Uncomment the following lines to add Brightmail AntiSpam support. You need
 # to have the Brightmail client SDK installed. Please check the experimental
 # documentation for implementation details. You need to edit the CFLAGS and
@@ -507,6 +511,11 @@ DISABLE_MAL_MKS=yes
 # Uncomment the following line to add queuefile transport support
 # EXPERIMENTAL_QUEUEFILE=yes
 
+# Uncomment the following to add REQUIRETLS support.
+# You must also have SUPPORT_TLS enabled.
+# Ref: https://datatracker.ietf.org/doc/draft-fenton-smtp-require-tls
+# EXPERIMENTAL_REQUIRETLS=yes
+
 ###############################################################################
 #                 THESE ARE THINGS YOU MIGHT WANT TO SPECIFY                  #
 ###############################################################################