exim-{retiolum,smarthost} module: simplify ACL

krebs/3modules/exim-retiolum.nix

@@ -43,7 +43,6 @@ let
           primary_hostname = ${cfg.primary_hostname}
           domainlist local_domains = ${concatStringsSep ":" cfg.local_domains}
           domainlist relay_to_domains = ${concatStringsSep ":" cfg.relay_to_domains}
-          hostlist   relay_from_hosts = <; 127.0.0.1 ; ::1
 
           acl_smtp_rcpt = acl_check_rcpt
           acl_smtp_data = acl_check_data
@@ -61,41 +60,15 @@ let
           begin acl
 
           acl_check_rcpt:
-            accept  hosts = :
+            deny
-                    control = dkim_disable_verify
-
-            deny    message       = Restricted characters in address
-                    domains       = +local_domains
-                    local_parts   = ^[.] : ^.*[@%!/|]
-
-            deny    message       = Restricted characters in address
-                    domains       = !+local_domains
               local_parts = ^[./|] : ^.*[@%!] : ^.*/\\.\\./
-
+              message = restricted characters in address
-            accept  local_parts   = postmaster
-                    domains       = +local_domains
-
-            #accept
-            #  hosts = *.r
-            #  domains = *.r
-            #  control = dkim_disable_verify
-
-            #require verify        = sender
-
-            accept  hosts         = +relay_from_hosts
-                    control       = submission
-                    control       = dkim_disable_verify
-
-            accept  authenticated = *
-                    control       = submission
-                    control       = dkim_disable_verify
-
-            require message = relay not permitted
-                    domains = +local_domains : +relay_to_domains
-
-            require verify = recipient
 
             accept
+              domains = +local_domains : +relay_to_domains
+
+            deny
+              message = relay not permitted
 
 
           acl_check_data:
@@ -104,29 +77,19 @@ let
 
           begin routers
 
-          retiolum:
+          local:
-            driver = manualroute
-            domains = ! +local_domains : +relay_to_domains
-            transport = remote_smtp
-            route_list = ^.* $0 byname
-            no_more
-
-          nonlocal:
-            debug_print = "R: nonlocal for $local_part@$domain"
-            driver = redirect
-            domains = ! +local_domains
-            allow_fail
-            data = :fail: Mailing to remote domains not supported
-            no_more
-
-          local_user:
-            # debug_print = "R: local_user for $local_part@$domain"
             driver = accept
+            domains = +local_domains
             check_local_user
-          # local_part_suffix = +* : -*
+          # local_part_suffix = +*
           # local_part_suffix_optional
             transport = home_maildir
-            cannot_route_message = Unknown user
+
+          remote:
+            driver = manualroute
+            domains = +relay_to_domains
+            transport = remote_smtp
+            route_list = ^.* $0 byname
 
 
           begin transports

krebs/3modules/exim-smarthost.nix

@@ -157,39 +157,28 @@ let
         begin acl
 
         acl_check_rcpt:
-          accept  hosts = :
+          deny
-                  control = dkim_disable_verify
-
-          deny    message       = Restricted characters in address
-                  domains       = +local_domains
-                  local_parts   = ^[.] : ^.*[@%!/|]
-
-          deny    message       = Restricted characters in address
-                  domains       = !+local_domains
             local_parts = ^[./|] : ^.*[@%!] : ^.*/\\.\\./
-
+            message = restricted characters in address
-          accept  local_parts   = postmaster
-                  domains       = +local_domains
-
-          accept  hosts         = +relay_from_hosts
-                  control       = submission
-                  control       = dkim_disable_verify
-
-          accept  authenticated = *
-                  control       = submission
-                  control       = dkim_disable_verify
-
-          accept message = relay not permitted 2
-                  recipients = lsearch*@;${lsearch.internet-aliases}
-
-          require message = relay not permitted
-                  domains = +local_domains : +relay_to_domains
-
-          require
-            message = unknown user
-            verify = recipient/callout
 
           accept
+            recipients = lsearch*@;${lsearch.internet-aliases}
+
+          accept
+            authenticated = *
+            control = dkim_disable_verify
+            control = submission
+
+          accept
+            control = dkim_disable_verify
+            control = submission
+            hosts = +relay_from_hosts
+
+          accept
+            domains = +local_domains : +relay_to_domains
+
+          deny
+            message = relay not permitted
 
 
         acl_check_data: