Handle forwards as aliases with local copy

dovecot/conf/pigeonhole-sieve.dict

@@ -34,17 +34,3 @@ map {
   username_field = email
   value_field = reply_body
 }
-
-map {
-  pattern = priv/forward_enabled
-  table = user
-  username_field = email
-  value_field = forward_enabled
-}
-
-map {
-  pattern = priv/forward_destination
-  table = user
-  username_field = email
-  value_field = forward_destination
-}

dovecot/sieve/before.sieve

@@ -22,8 +22,3 @@ if allof (string :is "${extdata.spam_enabled}" "1",
 if string :is "${extdata.reply_enabled}" "1" {
   vacation :days 1 :subject "${extdata.reply_subject}" "${extdata.reply_body}";
 }
-
-if string :is "${extdata.forward_enabled}" "1" {
-  execute :pipe "forward" "${extdata.forward_destination}";
-  keep;
-}

dovecot/sieve/bin/forward

@@ -1,13 +0,0 @@
-#!/bin/bash
-
-# Get the mail content
-FILENAME=/tmp/forward-$$
-cat > $FILENAME <&0
-
-# Actually send the emails
-IFS=',' read -ra RECIPIENTS <<< "$1"
-for RECIPIENT in "${RECIPIENTS[@]}"; do
-    sendmail -S smtp $RECIPIENT < $FILENAME
-done
-
-rm $FILENAME

postfix/conf/sqlite-virtual_alias_maps.cf

@@ -4,7 +4,7 @@ query =
    FROM
      (SELECT destination, email, wildcard, localpart FROM alias
       UNION
-      SELECT email AS destination, email, 0 as wildcard, localpart FROM user)
+      SELECT email||(CASE WHEN forward_enabled=1 THEN ','||forward_destination ELSE '' END) AS destination, email, 0 as wildcard, localpart FROM user)
    WHERE
      (
       wildcard = 0