If you only want email sent to specific email addreses then you have to set the default email address to :fail:
- Don't use blackhole, don't use
/dev/null, use :fail: This will reject mails instead of accepting.
- Don't use "fail no such address", it doesn't work.
Also if you have
an account which no longer needs e-mail then you can just set their account to :fail:
Please make these changes to all your pop accounts, and for resellers inform your customers of this.
