Custom Allowed Domains lookup in spam filter

[smorks]

So I've managed to get a custom domain lookup thing working with the current spam filter. I created a new sieve script and just copied the existing spam filter script, and added the following after it does the DMARC checking. I then set a custom spam score with a value of -10.0. I also had to update the SMTP -> Inbound -> Data Stage -> Run Script to point to the custom spam filter sieve script.

# custom allowlists
# only check if dmarc passes
if eval "t.DMARC_POLICY_ALLOW" {
    if eval "key_exists('custom-domain-allow', from_domain)" {
        let "t.CUSTOM_DOMAIN_ALLOW" "1";
    }
}

and to maintain the list of custom domains, they are currently just listed in the config.toml file. i couldn't find an easier way to do that, but maybe with #609, it might be easier in the future. anyways, in my config file, i added the following to the end:

[lookup.custom-domain-allow]
domain1.com = ""
domain2.net = ""

i also added the "lookup.custom-domain-allow.*" value to the config.local-keys array too.

it would be nice if there was a way to either configure it in the Web UI, or to specify an external file that the domains could be read from.

let me know if there's any easier way to accomplish this, or if what i'm doing is a terrible idea!

[mdecimus]

Yes, that is the best to do it until the webadmin has an option for this. In addition to the config file, you can also define this list in a Redis or SQL server.