I have made a post about this on reddit.
Can someone with a higher understanding of sieve help me do this? I am using ProtonMail. It has been something I tried to do on and off for months..
Filters / sieve filters. Make a filter to check recipient = your custom domain, choose action delete. Run on existing mails. Delete trash by using „Delete all“.
I tried doing that using the discard;
from my knowledge but this did not work:
require "extlists";
if address :is "from" "my-email@domain.com"
{
discard;
}
Edit: Still need help!