![]() ![]() # Move to Junk folder imapsieve_mailbox1_name = Junk imapsieve_mailbox1_causes = COPY FLAG imapsieve_mailbox1_before = file:/etc/dovecot/sieve/report-spam.sieve # Move from Junk folder imapsieve_mailbox2_name = * imapsieve_mailbox2_from = Junk imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_before = file:/etc/dovecot/sieve/report-ham.sieve sieve_pipe_bin_dir = /etc/dovecot/sieve sieve_global_extensions = + Then, add the following lines inside of the plugin section of the same file. ![]() sieve_plugins = sieve_imapsieve sieve_extprograms Now open /etc/dovecot/conf.d/nf once more and edit the following line to enable the Sieve plugin for IMAP. Edit the upstream section of the same file to enable self_scan. We can also set the Proxy worker to self_scan mode which allows us to disable the Normal worker, freeing up our precious resources. bind_socket = "/var/spool/postfix/var/run/rspamd/milter.sock mode=0666 owner=_rspamd" Since we are running Postfix & Rspamd on the same machine, we can use unix sockets to communicate between the two more efficiently, so add the following line to /etc/rspamd/worker-proxy.inc. Postfix communicates with Rspamd over the milter ( mail f ilter) protocol. sudo service redis restart Configuring Rspamd maxmemory 256mb maxmemory-policy volatile-ttl We will also tell Redis to remove the key closest to expiration when memory needs to be freed. sudo apt install rspamd redis-server -y Configuring RedisĪs we are on a tight RAM budget, let’s limit the memory that Redis can use. Rspamd uses Redis to store data, so we have to install both. Awesome, right? Let’s do it! Installing Rspamd Therefore, we can use Dovecot’s Sieve plugin to filter messages with this header into the Junk folder. In these cases, an X-Spam header will be added to the message. Mail with a high spam score will be outright rejected, but messages with a moderate spam score will still be delivered because we want to be sure we’re not rejecting legitimate mail due to false positives. The higher the score, the more likely it is to be spam. Rspamd scans messages for patterns to determine a spam score. The only step left is to handle spam mail. We can access our mailbox from email clients or in the browser via Roundcube webmail. These are stored in a MariaDB database and managed using Postfixadmin via a web browser. Our DNS records are configured properly to ensure email is delivered to & from us, and we are using virtual mailboxes so that there is no need for a local unix user for each mailbox. We now have our server running on GCP configured to send and receive email via the SMTP protocol and allow IMAP connections, while encrypting traffic with TLS. If you have not read the previous articles in this series, please follow the links above to catch up. Managing Virtual Mailboxes with MariaDB & Postfixadmin.Configuring Postfix, Mailgun, & DNS Records.Changesįixed bug in which space-bar navigation didn't work correctly.Fixed memory leaks discovered during rebuild/migration testing.Mailsmith no longer checks the installed version of SpamSieve this avoids problems in which the version number in newer versions incorrectly failed the requirements test, so that Mailsmith thought that SpamSieve was not available. Mailsmith has some powerful mail filtering features but requires perseverance and patience to set it up that most users simply won't have.įixed bug in which space-bar navigation didn't work correctly.Fixed memory leaks discovered during rebuild/migration testing.Mailsmith no longer checks the installed version of SpamSieve this avoids problems in which the version number in newer versions incorrectly failed the requirements test, so that Mailsmith thought that SpamSieve was not available. Huge swathes of messages can be searched instantly within seconds by keyword and you'll probably find it considerably quicker than your default mail client in this respect. The stand out feature of Mailsmith is its search power however. In fact, setting-up Mailsmith can be rather arduous for beginners so don't expect to get up and running with it straight away. It depends on proper setup and training in order to filter your mail accurately. Instructions can be found in the Help menu but as you are warned beforehand, it does require accurate setup to filter your mail properly. If you select the default Mailsmith setup, it automatically launches SpamSieve which does require considerable configuration. When you open Mailsmith for the first time, it searches for compatible mail clients on your system. ![]()
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