Context

A lot of spam is coming through that has a spam rating between 4 and 6. SpamAssassin apparently works, as the Spam rating headers are added to the mails. In order to reduce spam, I lowered the SA_KILL value to 4.

Expected Behavior

No mail with a rating above 4 should be accepted.

Actual Behavior

I still receive mails with spam rating about 5

Possible Fix

No idea. And I don't even have a clue how to debug this properly.

Steps to Reproduce

1. Change the SA_KILL value in docker-compose.yml to 4

Your Environment

• Amount of RAM available: enough.
• Mailserver version used: latest
• Docker version used: Docker version 17.05.0-ce, build 89658be
• Environment settings relevant to the config:

    - ENABLE_FAIL2BAN=1
    - ENABLE_SPAMASSASSIN=1
    - ENABLE_CLAMAV=1
    - SSL_TYPE=letsencrypt
    - TLS_LEVEL=intermediate
    - SA_TAG=-2
    - SA_TAG2=3
    - SA_KILL=4
    - ONE_DIR=1
    - ENABLE_POSTGREY=1
    - POSTGREY_DELAY=600