I am using vpopmail and it is working very wekk for me.
I the FAQ I found the next question:
I don't want to bounce emails for non existent users. Instead I want
to delete them, how?
and also the answer.
But I will not to delete this mails.
If possible I will that vpopmail checks for the user before
to receive the rest of the message.
If the user do not exists I will to break the mail receiving for this
The reason is that we receive many unneedet messages for "old users"
and will not to use the chanel for thiss traffic.
Is it possible to make it with vpopmail?