base.m4: Explicitly disable the `CHUNKING' extension.

See https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html

Debian disables this extension by default, but be explicit about it for
now.

diff --git a/base.m4 b/base.m4
index 03dc4aae03663d3a60dcf57d9a64aa6b1adacba9..9e07bf7d92b22797a6bdd59c445f7e611ff1248e 100644 (file)
--- a/base.m4
+++ b/base.m4
@@ -88,6 +88,7 @@ received_header_text = Received: \
 SECTION(global, smtp)m4_dnl
 smtp_return_error_details = true
 accept_8bitmime = true
+chunking_advertise_hosts =
 
 SECTION(global, env)m4_dnl
 keep_environment =