fixup! Sieve filter limitation in imapsync (#112)

NethServer · Sep 6, 2024 · 6d2a53c · 6d2a53c
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diff --git a/imapsync.rst b/imapsync.rst
@@ -45,4 +45,7 @@ Known limitations
 - Imapsync does not integrate with :ref:`Piler <piler-section>`: messages
   copied by Imapsync are not archived.
 
-- Sieve filters are evaluated during LMTP delivery, which is used by Postfix to deliver emails. However, Imapsync likely uses IMAP commands to interact directly with Dovecot, bypassing LMTP and preventing Sieve scripts from being executed.
+- Sieve filters do not work with Imapsync, as they are evaluated during
+  LMTP delivery. Instead, Imapsync uses IMAP commands to interact directly
+  with Dovecot, bypassing LMTP and preventing the execution of Sieve
+  scripts.
diff --git a/migration.rst b/migration.rst
@@ -270,9 +270,10 @@ The migration involves transferring POP3 Connector settings to NS8 :ref:`Imapsyn
 Configurations of accounts using the IMAP protocol are translated to working Imapsync tasks.
 For accounts using POP3, it is necessary to review the settings and commence synchronization manually.
 
-Previously, a POP3 connector could use Sieve filters to sort emails during delivery via the LMTP protocol. Anti-spam filters were also applied during this process. 
-However, with Imapsync, which uses IMAP commands instead of LMTP, neither Sieve filters nor Rspamd anti-spam filters are applied. 
-This is a limitation, as emails transferred with Imapsync bypass both filtering processes.
+.. warning::
+
+  Emails fetched by Imapsync are not subject to anti-spam, anti-virus, or
+  Sieve filtering.
 
 .. _migrated_routes-section: