Enhance mail configuration: add envelope support in Sieve, create SMTP and IMAP SRV records, update Dovecot settings, and implement Postfix startup script

ansible/playbook_mail.yml

@@ -10,6 +10,8 @@
         mail_home: "{{ persistent_data | default('/var/lib') }}/mail"
         mail_user_id: 1000
         mail_group_id: 1000
+        postfix_user_id: 100
+        postfix_group_id: 101
       tags: always
 
     - name: Set required facts
@@ -43,3 +45,17 @@
       tags:
         - tasks
         - tasks::folders
+
+    - name: Create required postfix folders
+      become: true
+      ansible.builtin.file:
+        state: directory
+        path: "{{ item }}"
+        mode: "0750"
+        owner: "{{ postfix_user_id }}"
+        group: "{{ postfix_group_id }}"
+      loop: 
+        - "{{ mail_home }}/postfix"
+      tags:
+        - tasks
+        - tasks::folders