Mailcow: Disable Incoming Spam Checking

Modified on Fri, 19 Dec at 1:18 PM

For all of these, first SSH to the server and change directory:

cd /opt/mailcow-dockerized

After editing a file, Ctrl+O to save and Ctrl+X to exit.

And at the end you need to restart rspamd:

sudo docker compose restart rspamd-mailcow

Disable DKIM Rejection, URIBL Greylisting and Bad Reputation Policies

Error messages in rspamd are R_DKIM_REJECT, URIBL_GREY and BAD_REP_POLICIES.

sudo nano data/conf/rspamd/local.d/groups.conf

symbols {
    "R_DKIM_REJECT" {
        weight = 0.0;
    }
    "R_DKIM_TEMPFAIL" {
        weight = 0.0;
    }
    "R_DKIM_PERMFAIL" {
        weight = 0.0;
    }
    "URIBL_GREY" {
        weight = 0.0;
    }
    "BAD_REP_POLICIES" {
        weight = 0.0;
    }
    "MID_CONTAINS_FROM" {
        weight = 0.0;
    }
}

Disable Spamhaus RBL

Error message in rspamd shows SPF or Spamhaus error.

sudo nano data/conf/rspamd/local.d/rbl_group.conf

symbols {
    "RBL_SPAMHAUS_XBL" {
        enabled = false;
    }
    "RBL_SPAMHAUS_PBL" {
        enabled = false;
    }
    "RBL_SPAMHAUS_CSS" {
        enabled = false;
    }
    "RBL_SPAMHAUS_DROP" {
        enabled = false;
    }
}