Am 13.03.2014 14:46, schrieb li...@rhsoft.net: > Am 13.03.2014 14:42, schrieb Pol Hallen: >> Hi all, I need an advice about my mx-backup server >> >> main mail server has many antispam system (amavis, spamassassin, etc.), >> when an email bounced by these antispam, the email goes to mx-backup >> server. mx-backup server keep email inside own queue. >> >> So, do I need install amavis and other antispam system also on mx-backup? > > surely - the other option would be to scan the from the > backup-MX delivered messages but *that* would lead in > becoming a backscatter > > the machine which accepts mail from the internet needs to *reject* unwanted > ones
or better forget the broken idea of a backup MX a short downtime does not matter, that's why mail get deferred by the sender and if not it was most likely only junk - a sane MTA retries
