* one imapsieve script to rule them all

antispamsieve/learn.sieve

-require ["vnd.dovecot.pipe", "copy", "imapsieve", "environment", "variables", "regex"];
+require ["vnd.dovecot.pipe", "copy", "vnd.dovecot.imapsieve", "environment", "vnd.dovecot.environment" , "variables", "regex"];
 
-if environment :matches "imap.mailbox" "*" {
+if environment :matches "vnd.dovecot.mailbox-to" "*" {
     set :lower "mailbox" "${1}";
 }
 
@@ -14,19 +14,43 @@ if string :regex "${mailbox}" "^(sent( .*)?|drafts|rascunhos|itens enviados)$" {
     stop;
 }
 
-# detect spam folders
+if environment :matches "imap.cause" "*" {
+    set "cause" "${1}";
+}
+
+if string :is "${cause}" "APPEND" {
+  # Do not learn from Unknown (APPEND/Outlook) to Archive folders (risk of too much messages)
+  if string :regex "${mailbox}" "^(archive|arquivo).*" {
+    stop;
+  }
+  set "fromtype" "unknown";
+} elsif environment :matches "vnd.dovecot.mailbox-from" "*" {
+    set :lower "frombox" "${1}";
+    # Set type of origin folder
+    if string :regex "${frombox}" "^(junk( .*)?|spam|lixo eletr.*)$" {
+        set "fromtype" "spam";
+    } else {
+        set "fromtype" "ham";
+    }
+} else {
+  # COPY without could not determine origin folder / should never execute
+  stop;
+}
+
+# Set type of destination folder
 if string :regex "${mailbox}" "^(junk( .*)?|spam|lixo eletr.*)$" {
     set "command" "spam";
 } else {
     set "command" "ham";
 }
 
-if environment :matches "imap.user" "*" {
-    set "username" "${1}";
+# Do not learn when moving between same type folders
+if string :is "${fromtype}" "${command}" {
+  stop;
 }
 
-if environment :matches "imap.cause" "*" {
-    set "cause" "${1}";
+if environment :matches "imap.user" "*" {
+    set "username" "${1}";
 }
 
-pipe :copy "sa-learn-pipe.sh" [ "${username}", "${command}" , "${cause}" , "${mailbox}" ];
+pipe :copy "sa-learn-pipe.sh" [ "${username}", "${command}" , "${cause}" , "${frombox}(${fromtype})=>${mailbox}(${command})" ];

antispamsieve/learn_ham.sieve

-require ["vnd.dovecot.pipe", "copy", "imapsieve", "environment", "variables", "regex"];
-
-if environment :matches "imap.mailbox" "*" {
-    set :lower "mailbox" "${1}";
-}
-
-# do not process Trash folders
-if string :regex "${mailbox}" "^(trash|deleted( .*)?|itens exclu.*)$" { 
-    stop;
-}
-
-# do not process Junk folders
-if string :regex "${mailbox}" "^(junk( .*)?|spam|lixo eletr.*)$" {
-    stop;
-}
-
-if environment :matches "imap.user" "*" {
-    set "username" "${1}";
-}
-
-if environment :matches "imap.cause" "*" {
-    set "cause" "${1}";
-}
-
-pipe :copy "sa-learn-pipe.sh" [ "${username}", "ham" , "${cause}" , "${mailbox}" ];

antispamsieve/learn_spam.sieve

-require ["vnd.dovecot.pipe", "copy", "imapsieve", "environment", "variables", "regex"];
-
-if environment :matches "imap.mailbox" "*" {
-    set :lower "mailbox" "${1}";
-}
-
-# Work only on Junk folders - exit if not
-if not string :regex "${mailbox}" "^(junk( .*)?|spam|lixo eletr.*)$" {
-    stop;
-}
-
-if environment :matches "imap.user" "*" {
-    set "username" "${1}";
-}
-
-if environment :matches "imap.cause" "*" {
-    set "cause" "${1}";
-}
-
-pipe :copy "sa-learn-pipe.sh" [ "${username}", "spam" , "${cause}" , "${mailbox}" ];

dovecot/conf.d/99-wwmail.conf

@@ -6,6 +6,7 @@ mail_location = maildir:%h
 mail_privileged_group = mail
 mail_plugins = quota
 mail_attribute_dict = file:%h/dovecot-attributes
+imap_metadata = yes
 
 imap_capability = +SPECIAL-USE
 
@@ -22,44 +23,11 @@ plugin {
 
   sieve_plugins = sieve_imapsieve sieve_extprograms
 
-  # Append action - used by Outlook when moving!
+  # Learn Spam/Ham
   imapsieve_mailbox1_name = *
-  imapsieve_mailbox1_causes = APPEND
+  imapsieve_mailbox1_causes = COPY APPEND
   imapsieve_mailbox1_before = file:/etc/wwmail/antispamsieve/learn.sieve
 
-  # From elsewhere to Junk folder
-  imapsieve_mailbox2_name = Junk*
-  imapsieve_mailbox2_causes = COPY
-  imapsieve_mailbox2_before = file:/etc/wwmail/antispamsieve/learn_spam.sieve
-
-  # From Junk folder to elsewhere
-  imapsieve_mailbox3_name = *
-  imapsieve_mailbox3_from = Junk*
-  imapsieve_mailbox3_causes = COPY
-  imapsieve_mailbox3_before = file:/etc/wwmail/antispamsieve/learn_ham.sieve
-
-  # Variations of Junk folder names
-  imapsieve_mailbox4_name = Spam*
-  imapsieve_mailbox4_causes = COPY
-  imapsieve_mailbox4_before = file:/etc/wwmail/antispamsieve/learn_spam.sieve
-
-  # From Junk folder to elsewhere
-  imapsieve_mailbox5_name = *
-  imapsieve_mailbox5_from = Spam*
-  imapsieve_mailbox5_causes = COPY
-  imapsieve_mailbox5_before = file:/etc/wwmail/antispamsieve/learn_ham.sieve
-
-  imapsieve_mailbox6_name = Lixo*
-  imapsieve_mailbox6_causes = COPY
-  imapsieve_mailbox6_before = file:/etc/wwmail/antispamsieve/learn_spam.sieve
-
-  # From Junk folder to elsewhere
-  imapsieve_mailbox7_name = *
-  imapsieve_mailbox7_from = Lixo*
-  imapsieve_mailbox7_causes = COPY
-  imapsieve_mailbox7_before = file:/etc/wwmail/antispamsieve/learn_ham.sieve
-
-
   sieve_pipe_bin_dir = /etc/wwmail/antispamsieve/
 
   sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment