various improvements and fixes

[distro-setup] / mail-setup

diff --git a/mail-setup b/mail-setup
index d6ba6f7f7b07ef24b90d6e2a16cfdb0b61c6c37d..afbc1945d553102a2aaef46f22a85194b20e0ed3 100755 (executable)
--- a/mail-setup
+++ b/mail-setup
@@ -345,6 +345,12 @@ EOF
 
     # most of these settings get translated into settings
     # in /etc/exim4/update-exim4.conf.conf
+    # how /etc/exim4/update-exim4.conf.conf translates into actual exim settings is
+    # documented in man update-exim4.conf, which outputs to the config that
+    # exim actually reads. except the man page is not perfect, for example,
+    # it doesn't document that it sets
+    # DCconfig_${dc_eximconfig_configtype}" "1"
+    # which is a line from update-exim4.conf, which is a relatively short bash script.
     # mailname setting sets /etc/mailname
 
     debconf-set-selections <<EOF