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email:configure-dovecot [2025/03/04 10:01] – [Main changes] willyemail:configure-dovecot [2026/04/07 06:49] (current) – willy
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-====== Configuring Dovecot ======+====== G) Configuring Dovecot ======
  
 Dovecot configuation is stored in **/etc/dovecot**. There is a master file called **dovecot.conf** but most of the changes need to be applied to the files under **/etc/dovecot/conf.d**.  Dovecot configuation is stored in **/etc/dovecot**. There is a master file called **dovecot.conf** but most of the changes need to be applied to the files under **/etc/dovecot/conf.d**. 
  
 For each file, i will show you the changes from the defaults that you need to apply. For each file, i will show you the changes from the defaults that you need to apply.
 +
 +**NOTE:** Dovecot 2.4 introduced some changes to the config file. The following has been adapted to this new format.
  
 ===== Main changes ===== ===== Main changes =====
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 Edit **doveconf.conf**: Edit **doveconf.conf**:
 <code> <code>
-protocols = imap lmtp sieve managesieve +dovecot_config_version = 2.4.2 
-login_greeting = IMAP server ready. +dovecot_storage_version = 2.4.2 
-# Optional DEBUG stuff to enable if things don't work: + 
-#auth_verbose = yes +!include_try conf.d/*.conf 
-#auth_verbose_passwords = no + 
-#auth_debug = yes +protocols { 
-#auth_debug_passwords = yes +  imap = yes 
-#mail_debug = yes +  lmtp = yes 
-#verbose_ssl = yes+  sieve = yes 
 +} 
 + 
 +mail_home = /home/vmail/storage/%{user | domain}/%{user | username} 
 +mail_driver = maildir 
 +mail_path = ~/maildir 
 + 
 +mail_uid = vmail 
 +mail_gid = vmail 
 + 
 +namespace inbox { 
 +  inbox = yes 
 +  separator = / 
 +} 
 + 
 +sql_driver = sqlite 
 +sqlite_path = /home/vmail/database/vmail.sqlite3 
 + 
 +passdb sql { 
 +  query = SELECT username, domain, password FROM mailbox WHERE username = '%{user}' AND active = 1 
 +} 
 + 
 +userdb sql { 
 +  query = SELECT CONCAT('/home/vmail/storage/', maildir) AS home, CONCAT('maildir:storage=', quota) AS quota FROM mailbox WHERE username = '%{user}' AND active = 1 
 +  iterate_query = SELECT username AS user FROM mailbox 
 +}
 </code> </code>
  
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 This is required because postfix will use dovecot to deliver mail to mailboxes internally and to perform SASL authentication as well. This is required because postfix will use dovecot to deliver mail to mailboxes internally and to perform SASL authentication as well.
  
-===== Setup authentication =====+===== Setup Sieve =====
  
-Changes in **conf.d/10-auth.conf**:+Sieve let's you create custom filters that will filter your inbound emails. 
 + 
 +Changes in **conf.d/90-sieve.conf**:
 <code> <code>
-auth_mechanisms = plain login +sieve_script personal { 
-#auth_default_realm = mydomain.com # is this needed? +  driver = file 
-#auth_realms = mydomain.com # is this needed? +  path = /home/vmail/storage/%{user | domain}/%{user | username}/sieve 
-#!include auth-system.conf.ext +  active_path = /home/vmail/storage/%{user | domain}/%{user | username}/.dovecot.sieve 
-!include auth-sql.conf.ext+}
 </code> </code>
  
-===== Setup SQL backend =====+And enable sieve for lmtp (local delivery), edit **conf.d/20-lmtp.conf**: 
 +<code> 
 +protocol lmtp { 
 +    mail_plugins { 
 +    sieve = yes 
 +  } 
 +</code>
  
-Changes in **dovecot-sql.conf.ext**:+ 
 +===== Setup authentication ===== 
 + 
 +Changes in **conf.d/10-auth.conf**:
 <code> <code>
-driver = sqlite +auth_mechanisms = plain login
-connect = /home/vmail/database/vmail.sqlite3 +
-password_query = SELECT username, domain, password FROM mailbox WHERE username = '%u' AND active = 1 +
-user_query = SELECT CONCAT('/home/vmail/storage/', maildir) AS home, CONCAT('maildir:storage=', quota) AS quota FROM mailbox WHERE username = '%u' AND active = 1 +
-iterate_query = SELECT username AS user FROM mailbox+
 </code> </code>
  
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 Changes in **conf.d/10-mail.conf**: Changes in **conf.d/10-mail.conf**:
 <code> <code>
-mail_location = maildir:/home/vmail/storage/%d/%n/maildir +mail_home = /home/vmail/storage/%{user | domain}/%{user | username} 
-mail_uid = 5000 +mail_driver = maildir 
-mail_gid = 5000+mail_path = ~/maildir 
 + 
 +mail_uid = vmail 
 +mail_gid = vmail
 </code> </code>
  
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 Changes in **conf.d/10-ssl.conf**: Changes in **conf.d/10-ssl.conf**:
 <code> <code>
-ssl_cert = </etc/letsencrypt/live/mail.mydomain.com/fullchain.pem +ssl = yes 
-ssl_key = </etc/letsencrypt/live/mail.mydomain.com/privkey.pem+ssl_server { 
 +  cert_file = /etc/letsencrypt/live/[ ... domain ... ]/fullchain.pem 
 +  key_file = /etc/letsencrypt/live/[ ... domain ... ]/privkey.pem 
 +}
 </code> </code>
- 
-===== Setup Sieve and ManageSieve ===== 
- 
-TBD 
- 
-<code> 
-# Sieve 
-managesieve_notify_capability = mailto 
-managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date 
-</code> 
- 
  
 ===== Testing ===== ===== Testing =====