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feat: add support for Dovecot IMAP/POP3 configuration

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Introduces functionality to install and configure Dovecot alongside Postfix to provide IMAP/POP3 services.

Changes include:
- Added tasks to install Dovecot packages (core, imapd, pop3d, lmtpd).
- Added templates for main configuration and conf.d files (auth, master, ssl, mail).
- Defined default variables for protocols, SSL settings, and Maildir location.
- Enabled Postfix SASL and LMTP integration options.
- Added a handler to restart the Dovecot service.
- Updated README.md with the new configuration variables and usage instructions.
This commit is contained in:
Luciano Giacchetta
2026-02-10 17:24:59 -03:00
parent 2861687888
commit 87ce53d1d3
12 changed files with 181 additions and 3 deletions
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16
README.md
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@@ -37,6 +37,22 @@ The role's behavior can be customized using the following variables. The default
| postfix_inet_interfaces | all | The network interfaces Postfix listens on. Set to loopback-only to only accept mail from the server itself. |
| postfix_inet_protocols | all | The IP protocols to use (ipv4, ipv6, or all). |
### **Dovecot Configuration**
The role now supports installing and configuring Dovecot for IMAP/POP3 services.
| Variable | Default Value | Description |
| :---- | :---- | :---- |
| dovecot_enabled | true | Whether to install and configure Dovecot. |
| dovecot_protocols | "imap pop3 lmtp" | Protocols to enable. |
| dovecot_mail_location | "maildir:~/Maildir" | Mail storage location. |
| dovecot_ssl | "yes" | SSL/TLS configuration (yes, no, required). |
| dovecot_ssl_cert | snakeoil | Path to SSL certificate. |
| dovecot_ssl_key | snakeoil | Path to SSL key. |
| dovecot_auth_mechanisms | "plain login" | Authentication mechanisms. |
| dovecot_postfix_sasl_enable | true | Enable Postfix SASL authentication via Dovecot. |
| dovecot_postfix_lmtp_enable | true | Enable Postfix delivery via Dovecot LMTP. |
### **SASL Authentication**
SASL authentication for the smarthost is **automatically enabled** if both postfix_relayhost_user and postfix_relayhost_password are defined. If they are not defined, Postfix will attempt to send mail without authentication.