alpine approach completed

exim.conf.tmpl

@@ -0,0 +1,28 @@
+primary_hostname = %HOSTNAME%
+qualify_domain = %LOCALMAILNAME%
+
+acl_smtp_rcpt = acl_check_rcpt
+
+begin routers
+smarthost_route:
+  driver = manualroute
+  domains = *
+  transport = smarthost_smtp
+  route_list = * %SMARTHOST%
+
+begin transports
+smarthost_smtp:
+  driver = smtp
+  port = 25
+  multi_domain
+
+begin acl
+acl_check_rcpt:
+  accept
+    hosts = %RELAYNETS%
+  deny
+    message = "Relaying denied"
+
+begin rewrite
+*@* ${1}@${qualify_domain} Ffrs
+