How to train SpamAssassin on Plesk server?

Dmitry Bystrov

10 months ago

Question

How to train SpamAssassin on a Plesk server?

Log in to Plesk.
Enable Apply individual settings to spam filtering option in Tools & Settings > Spam Filter.
Go to Domains > example.com > Email Addresses > johndoe@example.com > Spam Filter.
Tick the option Move spam to the Spam folder:
Click on the screenshot below to expand
Press the OK button to apply the changes.
Using webmail or mail clients, train the spam filter and improve its accuracy by moving spam messages from Inbox to Spam and non-spam messages from Spam to Inbox.

Note: Spam training is performed on a daily basis while the Plesk daily task ( For Linux servers / For Windows servers ). In case it is required to run such a process manually, execute the command below via command-line:

# plesk daily ExecuteSpamtrain

Note: All messages are automatically removed from the Spam folder after 30 days. Move all non-spam messages back to the Inbox folder after performing the Plesk daily task.

Log into the server via SSH.
Place all existing spam messages for example into the spam folder of the johndoe@example.com mailbox.
Run the command below to generate the antispam database:

# sa-learn --spam /var/qmail/mailnames/example.com/johndoe/Maildir/.Spam/cur/
Copy the generated files from the step №3 from /root/.spamassassin/ to the .spamassassin folder of the required mailbox, for the example johndoe@example.com:

# cp /root/.spamassassin/* /var/qmail/mailnames/example.com/johndoe/.spamassassin/
Set the correct ownership for the copied files by executing the command below:

# chown -R popuser:popuser /var/qmail/mailnames/example.com/johndoe/.spamassassin/*

Note: after the steps above the antispam database will be applied to johndoe@example.com mailbox.

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