From a405a80438edaf479fd5f95625d62ef88d9263d5 Mon Sep 17 00:00:00 2001
From: Eric <514408+EricThi@users.noreply.github.com>
Date: Thu, 15 Jun 2023 16:14:59 +0200
Subject: [PATCH] Create u_e-dovecot-sieve_filter.en.md

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+Here is just an example of Sieve rule.
+
+on your /mailbox, Tab "Filters".
+
+You can create "Add filter" and Select domain.tld and Prefilter.
+
+## Rule Example for matches To and redirect mail, mark as read and move mail on subfolder
+
+```
+require "fileinto";
+require "mailbox";
+require "variables";
+require "subaddress";
+require "envelope";
+require "duplicate";
+require "imap4flags";
+
+if header :matches "To" "*mail@domain.tld*" {
+   redirect "anothermail@anotherdomain.tld";
+   setflag "\\seen"; /* Mark mail as read */
+   fileInto "INBOX/SubFolder"; /* Move mail on subfolder after */
+} else {
+  # The rest goes into INBOX
+  # default is "implicit keep", we do it explicitly here
+  keep;
+}
+```
+Keep Warning about From/To : if on source of your mail, you see firstname name <mail@domain.tld> : Your "if header" need to match all data
+If you use ":is" to replace ":matches", you need to set the exact patern.
+
+[Examples rules Sieve](https://doc.dovecot.org/configuration_manual/sieve/examples/)
+[IETF : Draft with examples](https://datatracker.ietf.org/doc/html/draft-happel-sieve-filter-rule-metadata-00)