1 files changed, 24 insertions, 0 deletions
diff --git a/debian/debconf/conf.d/acl/40_exim4-config_check_data b/debian/debconf/conf.d/acl/40_exim4-config_check_data
new file mode 100644
index 0000000..74cfd6c
--- /dev/null
+++ b/debian/debconf/conf.d/acl/40_exim4-config_check_data
@@ -0,0 +1,24 @@
+# 40_exim4-config_check_data
+
+acl_check_data:
+   # Deny unless the address list headers are syntactically correct.
+   #
+   # This is disabled by default because it might reject legitimate mail.
+   # If you want your system to insist on syntactically valid address
+   # headers, you might want to enable the following lines.
+   # deny message = Message headers fail syntax check
+   #	!acl = acl_whitelist_local_deny
+   #    !verify = header_syntax
+
+   # require that there is a verifiable sender address in at least
+   # one of the "Sender:", "Reply-To:", or "From:" header lines.
+   # deny message = No verifiable sender address in message headers
+   #	!acl = acl_whitelist_local_deny
+   #    !verify = header_sender
+
+   # enforce a message-size limit
+   # deny message = Message size $message_size is larger than limit of MESSAGE_SIZE_LIMIT
+   #	condition = ${if >{$message_size}{MESSAGE_SIZE_LIMIT}{yes}{no}}
+
+   # accept otherwise
+   accept