fix mail autoconfig

dockerfiles/confd/confd/templates/haproxy.cfg.tmpl

@@ -27,7 +27,6 @@ mode http
   rspadd  Strict-Transport-Security:\ max-age=15768000
   reqadd X-Forwarded-Proto:\ https
   acl autoconfig hdr_beg(host) -i autoconfig
-  use_backend mail.indie.host if autoconfig
 
 {{range $app := lsdir "/services"}}
 {{$hostnames := printf "/services/%s/*" $app}}
@@ -41,6 +40,8 @@ mode http
   {{end}}
 {{end}}
 
+  use_backend autoconfig  if autoconfig
+
 frontend http-in
   bind *:80
   redirect scheme https code 301
@@ -56,3 +57,6 @@ backend {{base $hostname}}
   server Server {{$data.ip}}:{{$data.port}} cookie Server
   {{end}}
 {{end}}
+backend autoconfig
+  cookie SERVERID insert nocache indirect
+  server Server mail.indie.host:443 cookie Server ssl verify none