How do I set up discard rules for my email?
There is a default discard rule for all emails under your domain name. If you want to edit the discard rule for all emails, you can edit the default record by clicking on Discard in the kebab menu next to the first DEFAULT record in Site Tools > Email > Forwarders > Manage Rules.
To add a discard rule for a specific email account, go to Site Tools > Email > Forwarders > Create New Rule > Discard. Choose the account for which you want to discard the emails. You can add a custom discard message or leave the discard rule with no message.