On 8/23/2016 11:57 AM, Sam <sr42...@gmail.com> wrote: > The problem is that the sender of the spam as something like > voicem...@ourdomain.fr ( the user voicemail doesn't exist in our database ) > > And sometimes dovecot create the directory and store the reply 's mail...
1. Don't accept mail for non-existent (invalid) users 2. Don't accept mail from domains that you control that don't originate from your smtp server(s) Problem solved.
