From aa35e8568a64aa54e4371252e39d7a18a58d39e6 Mon Sep 17 00:00:00 2001
From: Mauro Torrez <mauro@layer7.mx>
Date: Thu, 22 Jan 2026 13:36:43 -0300
Subject: [PATCH] Imagen intermedia para migracion de v4 a v5 (trixie)

---
 .gitea/workflows/build.yml |  2 +-
 10-mail.conf               |  6 +++---
 Dockerfile                 |  2 +-
 README.md                  | 15 +++++++++++++++
 4 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index b3711a3..3629bbc 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -15,7 +15,7 @@ jobs:
         repo:
           - "eumau/dovecot"
         tag:
-          - "4"
+          - "4-to-5"
     steps:
       -
         name: Set up QEMU
diff --git a/10-mail.conf b/10-mail.conf
index 4fe8a52..dc38747 100644
--- a/10-mail.conf
+++ b/10-mail.conf
@@ -1,7 +1,7 @@
 ##
 ## Mailbox locations and namespaces
 ##
-mail_location = mdbox:~/dbox
+mail_location = Maildir:~/maildir
 mail_attribute_dict = file:~/dovecot-attributes
 
 namespace inbox {
@@ -287,7 +287,7 @@ mailbox_list_index = yes
 # this for now.
 
 # Directory root where to store mail attachments. Disabled, if empty.
-mail_attachment_dir = /vmail/attachments
+mail_attachment_dir =
 
 # Attachments smaller than this aren't saved externally. It's also possible to
 # write a plugin to disable saving specific attachments externally.
@@ -297,7 +297,7 @@ mail_attachment_min_size = 64k
 #  posix : No SiS done by Dovecot (but this might help FS's own deduplication)
 #  sis posix : SiS with immediate byte-by-byte comparison during saving
 #  sis-queue posix : SiS with delayed comparison and deduplication
-mail_attachment_fs = sis-queue /vmail/attachments-queue:posix
+mail_attachment_fs =
 
 # Hash format to use in attachment filenames. You can add any text and
 # variables: %{md4}, %{md5}, %{sha1}, %{sha256}, %{sha512}, %{size}.
diff --git a/Dockerfile b/Dockerfile
index aaad852..139aab4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -54,7 +54,7 @@ ENV \
   LDAP_USER_FILTER="(&(objectClass=inetOrgPerson)(uid=%n))" \
   LDAP_PASS_ATTRS="userPassword=password, =userdb_home=/vmail/mail/%d/%n, =userdb_uid=5000, =userdb_gid=5000" \
   LDAP_PASS_FILTER="(&(objectClass=inetOrgPerson)(uid=%n))" \
-  LDAP_ITERATE_ATTRS="=user=%{ldap:uid}@%d" \
+  LDAP_ITERATE_ATTRS="=user=%{ldap:mail}" \
   LDAP_ITERATE_FILTER="(objectClass=inetOrgPerson)" \
   LDAP_DEFAULT_PASS_SCHEME=CRYPT \
   SINGLE_USER= \
diff --git a/README.md b/README.md
index de275ea..75a25f4 100644
--- a/README.md
+++ b/README.md
@@ -161,3 +161,18 @@ dovecot_antispam_pipe_program_notspam_arg: learn_ham
   alternativa de correo.
 * `dovecot_altstorage_directory` (`{{ vmail_home }}/alt-storage`):
   carpeta alternativa de correo.
+
+## Migracion de mdbox a maildir
+
+Decidí migrar porque el sis storage está deprecado. Adicionalmente al intentar sincronizar / hacer backup de la mdbox aparecen errores de integridad, seguramente por este storage
+
+```
+docker compose stop dovecot
+docker run --rm -ti -v mail_mail:/vmail eumau/dovecot:4 bash
+doveadm backup -f -u mauro@mau.ro Maildir:~/maildir
+### repetir para todos los usuarios
+exit
+### Actualizar imagen a 4-to-5
+docker compose up -d
+### Ahora ya deberíamos tener maildir sin attachments externos
+```